I've been waiting for a 2015 update of the rMBP, and now that its out (13 inch), I'd like to upgrade from my old 2010 MBP 13". So my question is, should I be waiting longer into the year for a Mid-2015/Late-2015 Update with better specs? Or should I get a 13" rMBP now, configured to (preferably) 16GB of RAM and a 3.1GHz intel i7? (2199 USD)