Considering getting a mini for audio production. I'm torn between a "new" maxed out 2014 or picking up a Late 2012 quad core, maxing out the ram and adding an ssd. Both should be adequate for my needs. However, I can get the 2012 cheaper. My concern is the longevity of buying the 2012. How much use can I expect to get out of it? Am I better buying new even though the older quad cores are technically better machines? Help!