Comment by saas_sam

Sounds great until you realize 1. riders would only use the app if they could sort by 'price,' 2. drivers would therefore have to constantly change their rates to reflect what those in the area are charging at a given time/supply/demand level, so.. 3. in order to do this effectively without creating massive unexpected price swings for both drivers & riders, you'd end up automating this 'bidding' system and hey whaddya know, you just built Uber again!