Ever been tempted to rent a movie again, but thought the price was just a little too dear? Google may soon be willing to haggle a deal. One of its newly-granted patents could automatically lower the price of repurchase-friendly content, such as a Google Play Movies rental, depending on how likely you are to pull the trigger. Its algorithm weighs your personal tastes and repurchasing habits against those of your peers: if the code senses you'll be relatively stingy, you'll get a better discount. The analysis could even factor in the nat