By now, most of us understand that some of the things we buy are “depreciating assets.” A car, for instance, starts losing value the moment we drive it off the lot. A washing machine loses value every time it hums through another cycle. That’s depreciation: a predictable decline in resale or book value over time.

But there’s another, harsher reality. Some things don’t just depreciate. They expire. They operate less like durable assets and more like cartons of milk: useful for a short while, and then, suddenly, worthless. These are not just depreciating assets—they are perishable assets.

Depreciation vs. Perishability

Depreciation imagines a slope, a long curve where the value of an item drops year by year. Even after a decade, a used car is still worth something. A worn sofa can still be resold. The idea is continuity: a slow, grinding erosion of value.

Perishability, however, imagines a cliff. A product is worth something—sometimes a lot—until, abruptly, it isn’t. Its shelf life ends, and unlike a 20-year-old truck or a vintage guitar, no one wants it anymore. In this way, perishable assets aren’t investments or even “durable goods.” They are consumables masquerading as assets.

Technology: Shelf Life in Disguise

Consider the laptop. Buy one today at a premium price—$2,000 or more—and you feel like you’ve invested in productivity. You treat it gently, upgrade the memory, and install security patches. But by year four or five, that same machine is struggling with modern operating systems, new software standards, and online demands.

Try to resell it. You won’t get much more than what a thrift shop would pay for a used microwave. Unlike a car, which retains some basic mechanical utility, a laptop simply expires. It isn’t just worth less—it has effectively perished.

Smartphones fall into the same category. What was once cutting-edge turns into drawer clutter within three years. Functionally, these devices are disposable, no matter how carefully you treat them.

RVs: The Lifestyle Perishables

The RV is another striking case. Marketed as a “home on wheels,” it sounds like something durable, almost like property. But the reality is closer to a consumable.

Drive a brand-new RV off the dealer lot and you instantly lose 30–40% of its sticker price. Give it a decade, and the depreciation curve becomes irrelevant—because at that point, it’s often not resalable at all. Roof leaks, delamination, and drivetrain wear can render even a shiny interior worthless.

Unlike a home, which can gain value, or even a car, which still has resale utility, an RV is a perishable asset. The clock starts ticking the day it’s purchased. And when its shelf life is up, you’re left with something closer to scrap than an asset.

The Broader Pattern

Other goods fit this perishable model, too:

• Drones and cameras that depend on rapidly evolving battery tech and software support.
• Fitness equipment that becomes outdated as new models take over resale markets.
• Subscription-locked devices that simply stop functioning once the supporting software ecosystem disappears.

These aren’t just depreciating—they are expiring. And unlike antiques or classics, they rarely cycle back into desirability.

The Psychological Trap

The problem isn’t only financial. It’s psychological. We are trained to believe that large purchases are “investments,” even if they don’t appreciate. This is why many buyers justify dropping tens of thousands on RVs, tech, or luxury goods.

But in reality, many of these items are consumables. They belong in the same mental category as groceries or gasoline. You wouldn’t be shocked if a gallon of milk spoiled in a week. You shouldn’t be shocked when your $1,000 phone has no resale value in four years.

A Different Framework

What would happen if consumers embraced this mindset? If we treated laptops, RVs, and even certain cars not as depreciating assets but as perishables?

• We’d stop rationalizing purchases as “holding value.”
• We’d budget differently, recognizing that some things are closer to expenses than investments.
• We’d make more deliberate decisions, asking not “How long will this last?” but “What’s the expiration date?”

This shift in thinking might hurt industries built on the illusion of permanence. But it would also give buyers more power—because you can’t be deceived by depreciation curves if you recognize a product as inherently perishable.

Conclusion

The language of finance hasn’t caught up with reality. We still talk about depreciation as if everything we buy wears out at a steady, predictable pace. But modern consumer culture has introduced an entirely new category of ownership: perishability.

Some purchases—tech devices, RVs, fast-fashion clothing, even certain tools—are not assets at all. They are consumables with expiration dates, disguised as durable goods. The sooner we admit this, the less disappointment we’ll face when our so-called assets spoil before our eyes.

Because the truth is blunt: depreciation is a slope, but perishability is a cliff. And too often, we’re standing at the edge without realizing it.