Boston is such a big sports town, it seems possible to me that U.S. Nationals there will struggle to make an impression on the public at large.
It will help that this season was successful for Gao, Miner, Castelli/Shnapir (and maybe for other skaters from Boston whom I am forgetting) ... and that Shibutani2 have roots there.
(Sorry for being dense, but was another major sporting event big-footing Omaha Nationals this year? If so, I don't remember what it was ... or were you referring to London Worlds vs. March Madness?? In any case, rest assured that NBC once again will go all out to promote the Sochi Games in general -- and figure skating will be featured prominently both in promos and in the Olympic coverage itself.)