So I have been looking at laptops with gtx 770 under 1500$, 1300$ would be nice, and trying to find the one with the most bang for buck, and preferably on amazon ( and I perfectly fine with a refurbished), but one other criteria I'm looking for is the interchangeable gpu's so later down the road I can upgrade to a gtx 780 or maybe even something better IF possible if the BIOs, cooling, power supply, and mxm slot allowed. But I'm trying to decide between an MSI gt60 2oc, or a Sager NP8265 (Clevo P150SM), they both have about the same specs. So the main question is would the MSI Gt60 2oc have a possible upgradable gpu, because I know it's replaceable, but could I upgrade it to at least a gtx 780.I know it's relatively easy for a Sager NP8265 (Clevo P150SM) to upgrade almost every part. So just given me your opinion, or even recommend a computer that has an upgradable mxm 3.0 slot. (Besides an Alienware)