Who is upgrading to Nikon D7100 and why?

I almost certainly will if I can raise the dosh.

I moved from D300 to D7000 because I wanted the high ISO performance, and I love it, except the focusing system, which I have found it be massively weaker. If the D7100 has addressed this (and the 51 point system indicates they might have done) it will fulfill my every current need. of course I will need to see some real world info, but to me this looks the business.