Can be anything gaming related. A console or handheld, a game that you pre-ordered or bought for full price that was crap, a peripheral that you never used etc
Mine is the PSP. I played a few hours on the games I got with it, one was Miami Vice which was ok and I can't remember the other. After that, I played a fair amount of Football Manager portable but it's nowhere near as good as the PC version. Looking back the PSP had a good library but I didn't follow gaming enough to realise it at the time.
What is yours?