1) Uber comes in pays well - sources on the net for hip drivers - You get awesome English speaking nice drivers
2) Uber starts to drop rates
3) Good Uber drivers quit for lack of pay, existing cabbies start to drive for Uber
4) Alternate company, takes lower margin, pays drivers well and offer better customer experience.
5) Uber hold some inertia in via brand name while the majority of the market recognises new services is better and uploads new app on their phone over the course of a year or 2.
This is the beauty of the Uber model. Its relatively easy for new entrants to enter. There's no medallion system holding out innovation. The day Uber mucks around their customers/drivers significantly I'll delete their app. I already use an alternate one occasionally for comparison and cause I like to see competition in the market.