There is literally nothing innovative about AirBnB or Uber. It's just "The Hilton App" or "The Checkered Cabs App", except that they break hotel & taxi law respectively

No, there really isn't anything innovative about them. I doubt that will stop HN comments from crying "Won't someone think of the INNOVATION" when confronted with regulations to produce an impediment to something they want.

I would say their pricing models are much more dynamic, but that's because they're just middle men and aren't responsible for the supply side (except providing incentives to increase supply, not actually providing capital, management, etc).

Right but dynamic pricing is precisely why taxicabs are as regulated as they are. It costs you the same amount to get from the Airport downtown on a Friday night as it does Tuesday at midday. And you the tourist know how much it'll cost you when you get there, because the price is regulated.

> It costs you the same amount to get from the Airport downtown on a Friday night as it does Tuesday at midday.

Only in a world with unlimited supply. When demand peaks, you'll either have the price increased ("surge pricing") or people will have to go without when supply can't mean demand.