I'm sure the price will sort itself out, but as I said earlier I use one at 60Hz 1080p and it really is the perfect card for that res right now. A 980ti would be a waste at that res, IMHO.
Waste at that refresh rate, not at that resolution. I can guarantee that a 980Ti doesn't run any new graphically demanding game at a constant 120fps+ at 1080p, with everything maxed out. Personally I find anything under ~100fps borderline unbearable and would rather not play if the other option was to witness a 60fps jerkfest.
Ergo, there is no such thing as overkill, unless you are not very particular.