Airbnb lets me rent a whole apartment for a couple weeks. Couldn't do that before. And Uber is so much better than the cabs it replaced that there can't really be any comparison. It's not just about price relative to competition.
My experience trying to use VRBO and HomeAway 10-12 years ago was just awful. There was basically no search or filtering functionality whatsoever, the only option was to scroll through page after page of "L@@K AT THIS OBNOXIOUS, INFO-FREE DESCRIPTION" manually until I found something that met some of my requirements.
I eventually gave up and resorted to going through an agency. For an actual vacation involving a group of people, that wasn't so bad. As a solo traveler wanting economical, shared accomodations, Airbnb was a game changer when it first came onto the scene. Nowadays, not so much, although I do still get lucky sometimes -- I'm writing this from a perfectly acceptable room in a very nice host's home that is costing me $113/night all-in.
