So I'm in the market for a new 1440p monitor and I know that a single gtx 970 isn't gonna do the most amazing job so after I get the monitor I'll save up for a couple months to upgrade. Should I just get a second one and use it in SLI? Or should I spend the extra 300 on getting a single gtx 980Ti? I'm a college student who makes roughly 1000 a month so I'm not rich.