The concept of Uber (i.e., being able to reliably call a taxi from the phone) has a lot of value but there are significant competitive advantages of being the first to a customer's phone or by being the cheaper option to get adoption.

Hate to simplify it, but in many ways what we saw with Uber was similar to GroupOn. Uber will likely collapse, let's hope it does not take the tech market down with it. Although, I'm all for bubbles bursting and markets normalizing.