Hm. Never really thought too much about this. Do I own any? No. Would I? I would say no, because it just doesn't fascinate me in any way, but I'm not at all repulsed by the idea of someone being into that at all, either.
I guess some of us express interest in that kind of thing differently. Some would grab collectibles, and some would just come here every day and read about it every day....:D...I find nothing wrong with either. We're not the ones committing the crimes.