I just picked up 13-inch rMBP from Apple the other day but noticed Best Buy lowered their previous generation models by $200. I paid around $1,460 (current generation, 2.4GHz/256SSD/8GB Ram) and I can get the 15-inch for about $1,640 (I have $80 in rewards certificate) The 13-inch suits me well, but for the price wise, which is a better buy? It's about a $180 price difference in my situation.