There are more than 10,000 hotel rooms in and around Gatlinburg [1]. Even at the top of peak season, you will find a place to lay your head. Prices vary according to season; summertime and fall foliage (October) are peak periods, along with Christmas and New Year’s.
While there are some high-end hostelries, Gatlinburg [1] specializes in affordable family-friendly lodging.
Links:
[1] http://www.moon.com/destinations/tennessee/great-smoky-mountains/gateways-the-smokies/gatlinburg