Agreed. It is more socially acceptable for women to improve their attractiveness to the opposite sex than it is for men. Women can also get more improvement of their attractiveness through these methods. Additionally, it's considered acceptable for women to use various forms of psychological influence over men; see this NYT article I critiqued on my blog advocating training men like animals. When men do this, it's evil.

Hair and clothes are very important for men, though, not just because of physical looks, but because of the status and sexuality that they do (or don't) convey.