Ok so I'm kind of the type of person who doesn't like to have a very outdated machine, but i don't need to have the latest one either. I'm finally moving from PC to Mac and need to make sure i get one that will last me for about 3-4 years and wont become super outdated by then. I was thinking of get the new 15" macbook pro (non retina) with these specs: 15" macbook pro: 2.3GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.3GHz) with 4 GB ram but after looking at some retina reviews im scared that in a year or two everything is going to be retina or close to that, and im going to be pissed at spending $1700 on my non retina macbook pro that isnt really all that anymore. also i heard they might be making a 13" retina macbook pro by the end of this year, is it smarter if i wait for that? or should i go ahead and get the 2012 macbook pro non retina? thanks!