Why, oh why: Towels and Hotels

Why do hotels always have insufficient towel rack space?  We're staying at the recently renovated Hyatt Regency in Monterey.  The lone towel bar is no more than 18" long.  It barely fits four washcloths folded in half.  Yet there is the now customary note about the hotel's environmental commitment encouraging guests to reuse towels.  Ok, but what about proving space to let said towels hang to dry?

I am seriously tempted to start packing my own over the door hooks.