big collector here.
I practically decorate my entire appartment with my games so I need plenty of them ^_^
and I kind of like to look at my games and pretty much see my own life history, I played games with my dad before I was even capable of forming a comprehendable memory (first memory is from when I was 3) and I kept those games as well, old sega megadrive games, old floppies for Sim City and Prince of Persia... ah the glorious rush of nostalgia ^_^
so nah, never been much for trade ins, the only real threat towards my collection has always been my family, be it a sister or a cat, those were the real dangers...
I had once placed my favourite game on a shelf, but somehow it had fallen down and our dear cat really don't like when there is stuff on the floor so she dragged it to the litter box and peed on it...
but no longer a problem, now 8 years later I have a new copy and my own appartment so my collection is safe ^_^