This is silly. Just because google offers these things doesn't mean having your own isn't an advantage. The other thing is there are mapreduce like systems where you can start to break the rules.
The days aren't numbered. More and more companies are going to keep on contributing to Hadoop and Hadoop like projects. One can imagine that the days are numbered for Google. The moat will start to become less and less. Google is running from Hadoop not the other way around.
I mean look at this http://opencloudconsortium.org/ Eventually everyone is going to figure out that you can not just copy google but you can out engineer google. Google can't hire every good engineer.