I think this is pretty common already.... I used ABnb twice last week and both hosts were doing this....one of them currently lives in Nigeria actually. I googled one of the condo's I was staying in and the rent was around $1300 a month, I then looked at the calendar for unit and realized the rent would be paid with about a week and 1/2 of bookings which was present. It's a nice hustle. I'm thinking about doing it though I live in the NE and a comparable unit would run me $2000+ a month I think. I need to do some research but this posting gave me some more ideas