alt Hacker NewsPrices for higher-end lake homes/cabins/vacation homes etc., for AirBnB and VRBO are roughly equivalent where I live. This is pretty much the only kind of AirBNB I'll consider, and it is usually more about the the location of the home (on a lake, near skiing, etc) and it being large enough to split amongst others. Also many are managed by property management companies and list across multiple platforms. If I can track down the company I'll directly contact to see if there are cheaper rates.
IMO this is basically the only category of AirBnb that's worth considering and it doesn't seem like a big growth area.
The property management companies are great - you can even haggle with them. I love how clearly they identify themselves on both AirBNB and VRBO. You just have to be willing to give up the (false) security of booking through AirBNB.