Seems a lot of resellers use them to trying and justify their jacked up asking prices on various things, but do you use them for your personal collection? I've begun the goal of acquiring box protectors for my entire collection, boxes, cases, and cart only. I really like the looks of them, and not just for particular games but for everything. I find it enhances the presentation and makes it look more like a proper collection, rather than just an accumulation of stuff. To me a box protector says "I care about this / this is important to me". It's not just another random thing in my house that's collecting dust.
Of course, not only do they preserve condition and protect against minor incidents that may occur, the high gloss finish just makes every game pop. Even if the game or box is not in great shape, a box protector makes them appear to be in better shape than they are. I find they're well worth the 75 cents to $1 they usually sell at. I'm going to be ordering hundreds more of these things. Right now I'm boxing up my DVD style case games and it's looking good. I would have to recommend them.
How many of you use box protectors for all of your collection, versus just using of them for particular games, or items that you sell or buy that came with one?