I just want to add, that I have had only positive experiences at the MN Airstream park!! I went to visit a friend of mine who owns a share up there in the late spring, and I liked it so much (and I got the Airstram bug, seeing all those Airstreams together), that I bought a share there as well, and bought my first Airstream (a 2003 19' Bambi).
I am still relatively young (38) so I have not felt that I was unwelcome because of my age, in contrary, I felt very welcome and have made lots of new friends (young and old alike) there!! I like it so much that I have come up almost every weekend since I bought the share. If I would have kids, I would not hesitate and bring them up there as well.
A new and very happy MN Airstream shareholder.