I don't know, you may be right. I personaly put quite some attention to what I wear at the gym (match colors, etc..) and girls seem to like it, but it's not about bitches, I've just set high standarts for myself, kind of a perfectionist/obsessed about the details.
Ok, not saying to purposely wear stuff that does not match. But when I see shoe laces, arm bands with hat color matching, I think "what a fag".
I got one pair of shoes I wear for outside and the gym, if it matches my gym wear, fine, if not, bah... No sweat or stress about it, lol...