I thought that I didn't like it, but I was kind of wrong...it's just that many of the guys I've seen in gay adult videos were not particularly my idea of attractive. They were...a smidge too feminine, not that much aggressive male energy going on. Then I watched John Barrowman on Doctor Who and Torchwood, especially his TW exploits with other dudes...OMG YUMMY.
So finding the people attractive is part of it.
I also don't really love your typical porn. I like semi-erotic love scenes in mainstream films better, where it's more animal and less mechanical. Where they're not just showing sex, per se, they're showing passion.
You know, now that I think about it. That's kind of a big deal. (I'm drifting a bit.) The last guy I was crazy about and wanted sex from almost desperately, had a very high-body-contact and passionate style. He made lots of noise, he laid biting kisses on my arm and my hand, he talked dirty. Most of my lovers either never do that sort of thing to begin with, or wind up abandoning "passionate" behaviors pretty quick in favor of more mechanical "porno sex." Maybe that's why my interest in it wanes as the NRE does. Hm. Interesting train of thought to explore.