Why are men attracted to brunettes?

Depends what sort of man we're talking about here... I find that if he only goes for blondes he isn't interested in the long term. If he only goes for brunettes then he wants someone who will make him feel safe and like she wants commitment more than he does (which is a bit controlling for a man, so that's not good either). Hair is like nails. Whatever! Who cares! It doesn't matter, it's a detail! Frankly if a man likes a woman SOLELY for her hair color.. well....he's a douche!