When it comes to buying used cars, value is king. You need to know that what you're getting gives the best overall experience per dollar spent. Nowhere can that experience be more robust than in the understated opulence of a modern luxury car - an experience that fortunately is no longer bound to the deep pockets of the very rich.

If depreciation was a person, I'd marry it - that's how unhealthily in love I am with the concept. In the past year or so, I've purchased several high-end BMWs, supercar-smoking Mercedes-Benz luxury liners, and sports cars of a bygone era, which you would've clued into if you'd have .

The one thing placing them all in a delightfully convenient basket of affordability was the fact that they were at the bottom of their depreciation curves. What this means is that the wealthy original owners of the cars grew tired of cleaning their cars with hypoallergenic cashmere blankets, and elected to get something newer and more deserving of their hilariously expensive detailing supplies.

Since the original owners weren't concerned with retaining value on the purchase, they traded their cars in at a frankly criminal discount to the original purchase price, somewhere in the realm of 60 percent - which means that you can find cars purchased new for $100,000 for under $40,000 just a few short years later, in amazingly well-kept condition. Here's a great example of this beautiful concept in action.

This nearly perfect 2010 Mercedes S550 originally sold for a chipmunk's nose-hair under $100,000. While not fully loaded by Mercedes' standards, it certainly beats any new car today in terms of refinement and attention to detail, and . Even if a brand new Honda Accord has some of the gadgets of an S-Class, it will never be a Mercedes S-Class - and that's the point.

If you'd like to go further down the rabbit hole of extreme affordability, you can read about how - which has subsequently been the most reliable car I've had, which makes sense because...

3. The Cars Will Be Owned Mostly By People Who Couldn't Afford Them New

Most car manufacturers often test their cars in various environments to simulate driving conditions and moderately harsh climates. This is to ensure that they don't fall apart when hit with a light drizzle or a slight crosswind on a morning commute. However, companies like Audi, BMW and Mercedes test their cars as if they are humanity's only hope to survive the very real apocalypse bearing down on us. I'm sure if I strip off my S-Class' under-carpet soundproofing, I'll have a German translation of "THE END IS NIGH" written in blood by one of the car's engineers.

The reason for this extensive and expensive testing is the manufacturer knows that for the majority of the car's useful life, it won't be hosting impromptu business meetings for hedge fund managers and impressing interns in the company parking lot, but running errands for regular people that couldn't care less about the car's Parktronic systems and only got the car because they could make more money driving for Uber on weeknights. These cars were practically designed for the secondhand market where they will ultimately be abused until junked. This translates into models that are incredibly complex, but have such attention to detail and rigidity that they often times set the industry's standards for years to come in not only build quality, but safety - which is fitting, because...

2. A Used Luxury Car Is Often Safer Than A Regular Car

When you add millions in research and development, miles of welds to a remarkably robust chassis, and lots of extraneous and expensive safety equipment, you'll get a car that can allow you to literally walk away from nearly any crash. Although the cars depreciate, their safety systems still work as intended, and because the laws of physics haven't changed (to my knowledge) since the car rolled off the production line, they're still among the safest cars on the road today, as luxury cars are the only models made by manufacturers where no expense was spared. Here's a quick example:

That car was a Mercedes 420SEL - . I'm not sure of anything else that would even come close if safety is your primary concern.

" Yes, that fine, but everyone knows the most expensive car you can buy is a cheap luxury car, for the repair and maintenance bills alone!" you think while giving yourself a congratulatory pat on the back followed by a well-earned high-five. Well, it turns out that...

1. Even With Repairs, They're Still Likely Cheaper Than Buying A Regular New Car

Recently, and the results were both eye-opening and surprising, because other than his depreciation costs, which included him being in a hurry to buy AND sell, and his maintenance costs - which included thousand dollars bills for expensive dealer oil changes - he spent less than $1000 on the car, which was, by the way, dead reliable and never left him stranded, in a bad neighborhood, on fire. I'd argue that had he been a little more patient with his buying a selling and used an independent shop or *gasp* done the work himself over a weekend, his Ferrari would've cost him less in the long run than any new performance-oriented regular car.

This idea is taken to an even more frugal extreme when I tally the total of :

Key, ECU, shifter combo, USED - $350Replacement accelerator pedal, USED - $50Both rear Airmatic struts, NEW, with installation - $650 - $100One HID headlight ballast, USED - $40 and , NEW - $80 and , NEW - $65

I then and did the work myself. If I factored in the original $3000 purchase price of the car, my total expenditure on a great-running, top of the line Mercedes S-Class is less than $5400 and a few days' time. Yes, some repairs and bespoke parts can be expensive, but a bit of forward-thinking can remedy that if you budget well within your means and leave a safety net in the unlikely event of a catastrophic failure. It isn't impossible and it's not even difficult to do, and it's something anyone with an internet connection and a few free hours can accomplish in short order.

I don't have hands of gold and I'm not a Mercedes Master Tech in disguise with access to all of their top-secret diagnostic software. I'm simply a person that did my research, bought a car I liked that was head and shoulders above the rest in terms of outright quality and experience, and it's been nothing but smooth sailing from that point on - my wallet and sanity intact.

.

is the founder of and writes about on the internet. He owns the world's cheapest , a , and he's the only Jalopnik author that has never driven a Miata. He also has a real name that he didn't feel was journalist-y enough so he used a pen name and this was the best he could do.

There's a difference between being cheap and treasuring value per dollar spent. One is knowing…