With the end of the MacBook Pro 17, would it be wise to purchase on used late 2011 MacBook Pro 17 for $1600? I know that the late 2011 MBP 17 doesn't have USB 3.0, the latest processor and graphics. Is there really a big difference in the Ivy Bridge to Sandy Bridge? I'm currently looking at this computer: http://www.bestbuy.com/site/Samsung+-+17.3%22+Series+7+Laptop+-+8GB+Memory+-+1TB+Hard+Drive+-+Silver/4707146.p?id=1218512740839&skuId=4707146&st=samsung%20np&cp=2&lp=7 The Samsung is lighter and thinner than the MBP 17. It has the newer technology. Trying to decide which to purchase. I don't have a operating system preference.