Fighting Game Owners and Poorly Treated Games?

So one of my final 32X pick-ups (for now) is the ever-elusive and well-made Mortal Kombat II. From what I have heard (and seen to an extent) the 32X version sports better sprites, smoother graphics, and an overall better gaming experience than the Genesis edition. Is this worth the cost of the 32X, plus the hassle of finding the games, getting them to work, etc.? Probably not.....but I'm just a bit crazy.

Anyways, moving onto the topic at hand. One thing I have noticed over the years, especially now, is how fighting games tend to be in really poor condition most of the time. It's not a particular franchise or console, but the genre as a whole. I can't help but wonder why this is the case. Is it a demographics sort of deal? Are fighting-game fans less careful with their things? Does it have something to do with their household? Am I over-thinking this? Take care of your things, people! I have had one hell of a time finding clean copies of Mortal Kombat and Street Fighter, and we all know how many iterations exist on the SNES and Genesis.