How do you deal with your game backlogs?

If you're anything like me, you'll get into a rhythm of just buying games because they're either cheap or you like the look of them. Then after a while you'll realize you have stacks full of these unopened and un-played games to get through which begin to fill you with dread. For me at the moment, my stack must be at least 15 deep full of obscure or cheap games I got from our local used store (CEX). How do you handle such a backlog? For me, what I've done is gone through the stack and sorted out the games which I actually want to play and the ones that are more of a "ten minutes if you're bored" kind of game. I've started getting my way through one or two so we're getting there! 

What's your method to dealing with such backlogs?

I delete them like a super mega elite 1337 hax0rzz