Are there any audiophile Air BnB's?

Yeah, great idea.

Nice idea but I don’t know who would trust Air BnB's tenants with high end system. This is like to borrow your toothbrush to someone. Ones I was out for several days  vacation and my adult daughter with her boyfriend who is professional DJ tried to turn on my system. They were shy to ask me how to do it so during couple of days they tried to do everything. Results: messed up connections and moved components and tubes was left on for several days. :)

Wow, great in theory but we just sold a house in st George island Fl where there are mostly rentals. The guy across the canal had a renter rip all the flat screen tvs off the wall and off they went back to some college dormitory. This would be hard to pull off unless you chain everything down somehow. Not for me as an owner. As a renter, I’d like it. But wow, what a variable. 

There is another path, Grasshoppers, we do AirBnB from our house & our main system is fairly decent (Martin-Logan, over cone lower midrange, plus 18" sub).- we're pleased to host fellow audioholics & will sit you in a comfy chair and play tunes from our 4+ Tb music library.

Remember what Grandmother said:

"Starve the Flu, feed your addictions..."

Let any tenant supply his/her own system and make it clear to the tenant and neighbors that any complaint, which need not require a neighbor to confront the tenant and put up with false promises to turn it down only to be followed by experimenting with how loud the tenant can get away with, will result in immediate eviction the first time it happens. There will be no warning because you can't trust any bully who forces their culture, in this case, their music, down anyone's throat to change.

One way to decrease the risk of renting to such a bully is to specify, "Smokers need not apply" in advertising the rental.