On the other hand, if you are buying cheap it's usually because you aren't familiar with the product and it's characteristics. So you can take it as the price for learning about said product and what you really want from it.

For example, I got a cheap electric scooter for my wife on her birthday. We are new to these things, and didn't even know if we would use it at all. Fast forward a year and we have used the crap out of it, even the kids can't stop taking it out for a spin, and we now know what to look for and what sort of power and features we want when it comes time to replace it.