You are correct. Strange how nitwits affect market values with virtual currency. It's FRIGGIN VIRTUAL! (Apologies, it just throws me through loops to hear of such things.) Yes, the 770 2G is good card, especially considering the price to performance ratio juxtaposed with a suddenly expensive R9 280x 3G. But you may want to consider it anyway - 3 gigs seems to be a very sweet spot in gaming right now. 1 gig too little, 4 gig just wasteful in most cases. Though there are reviews (you can look them up at your leisure, I haven't the time) that claim that high stress games like Crisis and BF4 will utilize 1.8G of a 2G card, and 2.25G of a 3G card, with similar results. It's really up to you and maybe brand loyalty (which, mind you, is a particularly stupid habit). The 770 will run damn near anything you want right now. But be careful because that extra gigabyte in the 280x might carry you further.
Best of luck.