Are Vacation Rentals ever cash flow positive?

[Jeff Kehl]

I just finished reading Christine Karpinski's book 'How to Rent Vacation Properties by Owner' . The slant of it was that if you manage yourself and use portals like Airbnb, vrbo, etc. you can break even or even get positive cash flow. The idea's appealing to me but I have a hard time believing any vacation rental is very profitable.

So I thought I'd throw it out there to see if anyone was doing this profitably and if so, are there any characteristics that help? For instance beach better than mountains? Any Vacation rentals with exceptionally high occupancy?