Mike - The point about buying new is valid to a degree: Everyone will be new to the neighborhood so they're all in the mood to meet new people. We bought a resale last fall and, as snowflakes, have stayed there for a week or two several times since. We've gotten to know our immediate neighbors and have met a number of other folks in the area. Everyone is welcoming and friendly. But some of this has been of our own doing - we've seen some people outside in their yards, etc. and have taken it upon ourselves to stop and introduce ourselves. We always wave/say 'Hi' to anybody who goes past our place when we're outside. For those who aren't at all the 'outgoing' types, a new neighborhood might help. But for others, I don't see that there will be much trouble in getting to know people. We've also taken a tip from people who have handed us their personal "business card" with their name, address, e-mail, phone, etc. on it.......so I whipped up some of those for us to hand to people we meet. It's so easy to forget phones numbers and such - this way people don't have to write anything down!
More importantly, though, I'd suggest buying what you want and where you want it as being more critical than moving to a new area primarily to more easily make new friends!
Re: a wine cellar.............can't help you with that one!!
Bill