How many of you guys buy duplicate games?

[SvennoJ]

Sometimes I buy a game, trade it in after completing it, then buy it again a few years later when it's down to $10 or less.

I seldom buy games again to play on another system. Ico was an exception as I was just moving from Europe to Canada at the time. Remakes sure, and sometimes when a digital game comes out in a physical collection like Journey and flower.