Letting my parents coax me into unloading all of my childhood games and consoles minus my pokemon games and some ps2 memory cards prior to college is a massive regret. All I did as a kid was play, buy, and collect games, everywhere I went...
I still remember all of the calls (and the phone!) I got from the Craigslist add and the glee of the buyers hauling off bags of my games. Sold CIBs for 2 to 3 bucks a pop, consoles for $10 or less, then did a bulk discount. I got $200 for over 150 PS2 and Xbox games. I got maybe $800 for thousands of dollars of games.
All of this happened as the market was peaking, and I was completely unaware.
My teeth are clenched and jaw is going numb, just writing this comment and thinking about it.