So I have the MSI R9-270 GAMING 2GB D5 PCIE with full warranty, so I can get all of my money back for it anytime in the next two years.... I fully intend to take it back some day and get a better one. My question is, is it worth is to upgrade to the Sapphire Radeon R9 280/280x 3GB Dual-X right now, rather than wait a couple years? I mean it will be another 50-100 bucks, but maybe it's worth it?