I don't see how a high cost of entry is anti-competitive...at least in a way that's google's fault. Many industries have a high cost of entry, and there's entire businesses that crop up to lower it. Technology used to have a much higher cost of entry before cloud computing, for example. If you were doing anything at scale before 2005 or so, you had to own and maintain your own metal. Even Google Maps is one of those cost lowerers. A lot of companies were able to build their business on the back of google maps APIs.