goodroi - 1:15 am on Aug 19, 2013 (gmt 0)
Eventually Google may hit a plateau in the search industry (assuming they can't find a way to regain Yahoo's search contract) but I doubt that is going to cause Google to pullback. They have deep cash reserves and are already working on the next step.
What could a pullback look like?
It might look like a push into the auto sector with self driving cars
or a push into telecom services
or a push into mobile devices powered with android
or one of the many other projects they are developing.
I don't see why Google would take any poisonous short term actions that would risk scaring away consumers when they have good cash reserves and a significant R&D pipeline.