Alex Smith's possible suitors

Ever since Alex Smith was benched for Colin Kaepernick during the 2012 season, and it became apparent that the latter was going to retain his grip on the San Francisco 49ers' starting QB job, the speculation has been rampant as to where Smith would wind up in 2013. Will the Niners hang on to him as an insurance plan? Given that Kaepernick will make only $740,844 in 2013, Smith's salary is more palatable. Or will San Francisco try and market Smith to the highest bidder, given that there are so many QB-needy teams around the league?