Dan,
One other cautionary note on Asheville. The City Council is struggling with a way to deal with the vacation rental issues inside the city limit. Earlier this year they increased fines for folks caught operating vacation rentals with-in city limits (currently not allowed, but done all the time) and eased some restrictions for folks who just rent a room within their primary residence (referred to as homestays). Some local investors who were fined and shut down, have filed a law suite against the city.
Several communities around the city are watching the issue closely to see what Asheville does and them may adopt that policy. (Woodfin is one example just north of the city limits)
The county (Buncombe) doesn't have a prohibition on this use currently, but HOAs may have a restriction too.
So if you do start looking, make sure you team (agent, lawyer, property manager) understand your intent and advise you appropriately of any risks. Most folks in the area are aware of the myriad of issues and should be able to help you.
Best of Luck!
Pat