Well I'm about to get my first Mac laptop, its a 2007 MacBook Pro, (non unibody) its quite old but I don't care I will eventually upgrade it to 4 GB RAM and an SSD. I'm still using my Mac Mini 2006 Intel Core Duo with Snow Leopard, and since I need a Mac for college I decided to buy a used MacBook Pro on eBay. How long do you think the non unibody MacBook Pro will last? 