And then there's South Haven, Kalamazoo, the Hot Air balloon festival in Battle Creek, but Copper Harbor in the, der! haha Wisconsin's got nice stuff in the summer, too!
But if we are talking West coast, then how could we go wrong with the San Jose area? Wineries, close to the ocean, fairly temperate. Close to SF...a huge convention center & hotels... shopping, good food, several large universities (that may be available for housing). This area would win my vote hands down over Vegas!

I think Aggie and others had the right idea in the other post...get some ideas, get some general cost info & put it to a vote as to where to hold the first one. After that, we can talk about having it somewhere else (Are Denmark & Norway big enough to hold all of us??? hahaha )

Cool idea, and I'm excited about it!