- Not wanting staff or service.
- Wanting something that looks and feels like a home rather than a hotel room. This isn't available everywhere.
- Wanting something that isn't shared with a bunch of other hotel guests. (Aside: I have no problems with apartment buildings banning AirBnB/VRBO, because that's much more "cheap hotel substitute that might bother neighbors" than "unique offering that isn't likely to bother anyone".)
- In general, wanting something unique that doesn't tend to exist as a hotel.