I've been having troubles with my previous MBP, and apple are replacing it with the rMBP with 500gb ssd, i5 2.8ghz, 16gb ram. I'm thinking whether or not I should sell this, and wait for the new ones to come out and perhaps grab one of those? I don't NEED the pro right rihgt, but it'd be very helpful. If the specs for the next one will be significantly better then I can wai.t