Did you buy the card new, and if so, from where and what is the model number. If you got it new, I'd consider returning it and upgrading to the 770. It's only 36 bucks more than the 760 (Cheapest model vs cheapest model) and has a bit better scores in both synthetic and real world gaming benchmarks. All these questions would probably be moot if you did.
Otherwise, yeah, it might look a bit funny. Consider that in two years the standard resolution for all platforms will probably not still be 1080 anyhow as common monitor sizes are already breaking away from that.
It's impossible to buy ANYTHING that's going to be future proof to ANY degree these days. You just need to decide what you can live with. For me, if the hardware I have NOW can still play most games at medium settings in a few years, then what the hell, I'll either be ok with that or upgrade something. Two years from now, the GTX 970 will probably cost between 150-250 since something newer, better and faster will have already been released five times by then.