This is all pretty interesting, for some reason I didn't expect there to be such varied answers to it- glad there are though :)
For me, I think I could easily be with a guy who didn't have tattoos, as long as he was interested. If I couldn't have a good conversation about tattoos in any way, I probably wouldn't see the point. I already bore friends who aren't interested, haha. My best friend doesn't have a line on his body, but he still knows about tattoos and is really interested in them (just says he doesn't want them on his own skin- he'll change his mind, I reckon). If he wasn't interested in tattoos, I don't think we'd be best friends, because I'd bore him to death about work stuff or whatever magazine I'm shoving in his face at the time! When it comes to attractiveness, I don't think tattoos are that important, they're just a really great bonus, as long as they're good tattoos anyway.