We always stay at the Red Lion in Durango. It's a bit spendy, but quit nice. Especially if you ask for a room on the river side. Durango is a bit pricey in general although I'm sure there are cheaper places.
Cortez Colorado is 45 miles west of Durango and in a whole 'nother ballpark cost-wise (cheaper). I stayed at the Holiday Inn Express there a couple of years back. Good price and very comfortable. Lot's of Goldwings in the parking lot.
Regards,
Randy