I wonder if video games warped my view. My characters in Ultima III could carry a practically unlimited amount of equipment, and the price for buying and selling was the same, so stuff was as good as cash if you were in a towne.
In reality, it's very hard to sell random stuff yourself, especially if you want even a fraction of the "market price" someone would pay to get the equivalent object at the store.
Definitely something I've had to realize as I got older. One of the lies that I tell myself is that I can buy new stuff because I can easily sell it a year later for so close to what I bought it for, I'd be a fool NOT to buy it!
Apple products are the only things that this has been true for ultimately.. And honestly, having a laptop around enables me to make money so it's a no brainer.
In reality, it's very hard to sell random stuff yourself, especially if you want even a fraction of the "market price" someone would pay to get the equivalent object at the store.