Last december my company had an emergency, and I had to dial-up with a modem and find some time to work. I had a friend who was travelling with me and we were tired out from a long flight. We ended up grabbing a room at the first hotel we could find ($90) and checking out after about two or three hours..
The emergency fog delays around last Christmas that people have been posting about sounded like pretty compelling reasons, too, and there are times where I just plain miss my flight or have >3 hour connexions for international flights.
So last weekend, I sprung for a 15 month (CO-Elite-promo) membership, it works out to $15/month, which my company is paying for

-- my thanks to a fellow FlyerTalker for a $75 off coupon.