I'm not entirely sure why I watch yuri anime now and then, but it definitely isn't the reason mentioned above. They're rarely about lesbians going at it and usually focus on the emotional baggage... err "aspects" instead. That's fine though. Male viewers can watch yuri anime in hopes of understanding the female species better and becoming that sensitive guy they all like. (Okay, maybe not.) For me, I think I watch this genre to try and figure out exactly what it is girls see in this stuff. I often enjoy it as well, so that doesn't hurt either.