short back story - i got into photography about 1 year ago, and have been casually editing photos (2ish photos a week) on my macbook pro 2012 (i7 quad core) on Aperture. so i feel like im ready to move my work to a desktop. so is buying a used 2010 macpro 5.1 (6 cores) still worth it? is it still future proof? ill be using this with my dell 27" 2560x1440 resolution screen and i can always update gfx card (currently have a spare gtx 660) local craiglist ads are selling these 2010 macpro 5.1 6 cores for 750-900$ thanks for you inputs.