I did (81 k) and got denied. I also thought I'd wait for my USC offer (I ended up not waiting) but it was slightly lower than Vandy's offer. I tried to negotiate with 72 K from Duke and 90 K from IUIUC.
Still 99.999% going there though!
Kind of off topic, but what is swaying you toward Vandy over Duke? Is it mostly the higher scholarship amount or your perception of the quality of life/quality of the school?
I know that wasn't directed towards me... but for me it is, in order of preference...
2) Location (I think I'd enjoy Nashville MUCH more than Durham, after 1L of course)
3) Where I want to work (south or Midwest, but Duke is strong there as well)
4) other reasons I can't put my finger on, but it just feels more right.