Hee. If you think it makes you 'vain' you obviously like it enough to think it reflects on you. I'd say, buy it if you like it, or can go that long waiting for a red one to reappear.
(And, hey, if you can't wait for a red one, you can take a cue from Mags and bling up a black one.
I mean, I like aesthetics in things: my tastes are far more subdued, but I hardly think that's 'vanity:' some of it's practical, some of it's making a good impression when I need to, some of it's just cause I actually engage better with equipment that feels and to a lesser degree looks harmonious to me. (Frankly, when I do photo, I'm actually engaging the very same senses: gotta make those happy.) If a bright colored camera is what engages you, then do it.