I think it would be awesome to have a 50s themed town. I don't know how many people are with me on this. Just let that sit in your noggin for a while. I haven't found any place that even comes close. I know about Wildwood, NJ - but that's not the whole town AND its in New Jersey (ick!).
I have a ton of ideas for a themed town...just need a billion dollars to build it all. I'll post about this again. Right now, if you're reading this, think about what you'd want for location.