It's interesting looking at all of the concerns regarding surge pricing on NYE in Sydney. I looked at about 2am for a sydney city to rockdale fare and it was quoting $300-400. I got a cab for $45.
How long would you have waited for the Uber versus the Taxi? One of my friends in Sydney made the same decision, but then waited in line for well over an hour to get a taxi. If people are willing to pay to get an Uber quickly versus wait for a taxi, I don't think it's a bad thing to have the choice.
Price gouging to take advantage of a situation and the free market responding to supply-demand are really just the same thing, depending on whether you agree with it or not