Uber Is Raising Another Couple Billion, at a $62.5B Valuation

And from an investor's perspective, capitalizing at 6.25x supposed annual revenue, not profit, seems a bit exüberant.

Plus, Über isn't even close to ubiquitous yet. Good luck tracking down the one part-timer in Chico, CA, whom doesn't work weekends. It's probably due to about a dozen taxi companies already in to Chico / Paradise area already offering comparable rates, so there isn't really motivation to move into tertiary markets. This cash injection could easily lead to too aggressive over-expansion into too many low-margin markets, followed by layoffs / contraction, which is a common antipattern of investor pressure to "go big or bust".