Are Men Worth Dyeing for?

I've always felt like a redhead, though I certainly wasn't born one. In fact, I've been dyeing my once-mousy hair this crazy red shade-think Moira Shearer in The Red Shoes-for the past decade. Do you know how difficult this color is to maintain? Within two weeks there's more bright sienna on my towels than on my head, and the whole effect is muted considerably.