I am ready to buy a new imac and have a bunch of credit at both of these stores from my crecit card program. While I am not I big fan of either of these stores, I do want to use these credits towards the imac. Any idea when they will carry the new imac? I see Best Buy still shows the old model online. In the past what is the lag time for these stores to get a new apple product vs. the Apple retail stores? Thanks!