Las Vegas has neither Golden Corral nor Hometown Buffet, probably because of all the buffet competition from the hotels both on- and off-Strip. Boston Market had restaurants here for a while, but they abandoned the market due to poor sales.
When I lived in the Oklahoma City area, we had both Hometown Buffet and Golden Corral. The food was acceptable, but not great. You aren't going to pay one price and load up on top-notch food anywhere, except the more expensive hotel buffets here. National chains, no chance.