I'm out on the market for a new laptop. I want a Mac but not sure which one to purchase. I do light photo editing with Lightroom and iPhoto. Nothing major. Also, emails. Internet. Downloads. School papers. Etc I was looking at the 2012 MacBook Pro RETINA for $1,300 at bestbuy, the base model. And The 2013 MacBook Air 8GB Ram & 128GB SSD $1,139 with student discount. Which computer will last me the longest and still have the "brand new feel/ speeds" in 2-3 years?