I can sort of relate, because I tend to go absolutely nuts during Steam sales and I end up buying tons of games I almost never play. Sometimes, I'll be going through my library and I'll think "holy s**t, I have this game?!?" but then I don't end up installing it because I don't feel like wasting bandwidth or whatever.
I tend to compulsively hoard other things I find online that I like too, such as bookmarks, pictures, music... the files on my computer are incredibly disorganized, and I have all sorts of stuff that goes back years and years that I've never bothered to sort, and I always get overwhelmed whenever I attempt to.
In the past I also hoarded things like computer parts and old electronics, but I've cut down my stash quite a bit. Still need to go through some of it and sort it though. It doesn't help that most of it is in my grandparents' shed a few hours away...
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Every day is exactly the same...