So right now Gamestop is running a "trade 3 games get an extra 10 dollars deal", and so I have gotten two games completely on impulse: Doom 3 BFG and Skyrim. Do you find yourself ever randomly picking things up just because you can? Do you usually regret it?
For me, I end up impulse buying more often than I would like, and it tends to be a 50/50 deal. Half the time the game ends up not being for me and I hate it, and half the time it ends up in my pile of favorites.