Man, my initial thought was, "nah, they look cool, but I'd never get one." Thinking about it now though, they don't seem so bad! I mean, I collect tall shot glasses from places/events I've been to (currently have one for Cirque Du Soleil show, Amaluna, and another one for CN Tower in Toronto), and plus two short ones I got for Christmas that I think are awesome (ones says, "White Girl Wasted" and is glittery purple, the other one has the Triforce symbol on it), and I also collect tea sets, and I own a couple DC Superhero cups (no one is allowed to touch the Batman one, that's mine >.>). Plus, none of the cups or mugs in my cupboard match anyway, they're all random!
So maybe I'm not so opposed to anime cups or mugs