For me, I like staying in a nice place. I wouldn't mind sleeping on a park bench, but I hate mediocre run of the mill hotels. I rarely stay in anything less than $500 or $600 a night. Sure there are cheaper places to stay, but I could live in a cheaper house also. I like nice accommodations whether I'm at home or on the road.
Occasionally when traveling on business, I'll stay at a cheaper place for image or availability reasons , but I always stay some place nice when traveling on my own nickel.