LA has been rather dead lately in terms of big meets, and for the most part, rather apathetic about such things it seems.
Las Vegas, I just don't see it happening. I can't think of a single prominent member from the town. The distractions of the city itself almost seem to be too much, when generally there hasn't been enough time to do everything everyone wants to do, in much more "boring" places.
The Baltimore-DC area seems like a good fit, as there are plenty of members, and more prominent, experienced ones at that who could guide such an event. It is also well located for most on the wrong side of the Mississippi
Chicago, similarly, and it would be interesting to see what could be done with Shure Headquarters in the vicinity.
Seattle seems to have quite a large contingent of active members, and they have larger meets fairly regularly. Drawing in more members from Vancouver and Portland seems like a natural.
A Texas national meet also seems like a good idea. There are quite a few folks in that area who also put on regular medium to large meets. DFW seems like the natural choice, but dang if Austin wouldn't be fun. Especially the Marriott downtown, a stone's throw from 6th Street.
I'm all for making the meet truly international, just so long as it can keep up to the ever improving standards of what these events have been.