There are a number of people out there in building bitcoin/central communities.  One such reddit group with this idea in mind can be found over at: http://www.reddit.com/r/xnation

I think it's a very interesting idea worth considering, however, I would caution any soon to be bitcoin millionaires: don't let your optimism get the best of you.  It can be potentially disastrous to pool so much of your hard earned capital into a single psychotically expensive venture. It's a better idea to start small and let it grow.  Let people come as they please. Plant the seed, tend the soil, and sooner or later you've helped created something that wanted to come into existence in the first place.