At a $299 US rrp it's not strange that they are currently priced at 375-400, It's what I was expecting. It's about the same % mark up on the other models.
From what I have read, it is mostly the same card as the 670 just with smaller pipes, so less data transfer rate, and a bit less RAM.
The RAM as someone has pointed out is good for large resolutions when running AA, though NVidia is ment to be working on a replacement for AA that will be compatable with all 600 cards and give the same visual improvment as 4xAA with the overhead of 1xAA. I think it will be interesting to see how that pans out, a lot of people badged on NVidia for the 680 only having 2GB RAM because of the AA overhead.
It's still a mid ranged card, I think the 670 is better value for a Gamer, however if you only run these DX11 games these Ti cards are good and a cheap alturnative.