I know, that's not as bad as being addicted to drugs or drinking to excess, but it's bad enough. After all, it causes me to spend a lot more money on games and systems than I should.
Take, for instance, the complete-in-box Famicom cartridges (below) that I recently bought. Although I believe I got them at a good price, I certainly paid more for them than I would have had I bought them "loose" (without boxes and manuals).

The same will be true when I finally break down and buy a trio of PC Engine games that I've been eyeing up for some time. If I weren't so anal retentive, I could pick up loose copies of Gekisha Boy, Mizubaku Daibouken *and* Parasol Stars for little more than it would cost me to buy a single PS3/Wii/ Xbox 360 game. Instead, I'll probably end up spending that amount (or more) on each of them individually.
I used to be similarly anal when buying systems, but I've loosened up a bit in recent years--i.e., I no longer automatically turn up my nose at them if they don't come with their original boxes and manuals.
OK, I've owned up to my shameful, anal-retentive ways. How many of you are going to do the same?
Note: this post originally appeared on my other gaming blog, iwasateenagepcenginefan.wordpress.com