I've got a 15" mid-2010 MBP and am in the market for an upgrade to a SSD. The price on the Crucial M500 is at $260 right now. Anyway, I'm about to pull the trigger on the M500 but one thing is holding me back - the M500 has been out for a while now (April 2013). Any idea when the new model might be coming out? It seems like they should be due for a new one, right??