I think most people realize when they buy electronic equipment and gadgets that they will quickly decline in value and become obsolete in a few years.
I mostly use a home computer to read email and surf the web. Because of this, I never want to spend the money on an expensive computer.
My thinking is, I would rather have a cheaper computer and replace it every couple of years with a new one.
Anytime I have tried to sell used technology equipment like that, I always wonder if it is even worth the hassle. They decline so fast in value with new models coming out all the time, that you never get much money back.