Google's stock price would drop sharply if they went into maintenance mode right now. One of the main reasons they command the crazy high valuation they do today is because they remain on the cutting edge of the latest technology, which demonstrates an ability to adapt to the ever changing winds in their sector.
>>majani+(OP)
Google does not have a crazy high valuation. They trade at a forward PE of around 24 which is well within a normal valuation for a maturing growth company.