The Crane brothers are definitely my favorite snobs - Niles is hilarious!
I was going to say Lisa, the wife on Green Acres, then I realized she isn't snobby at all even if "New York is where she'd rather be" to paraphrase the song. The husband is more of a snob than she is :-)
So I guess it will have to be Lovey and Thurston Howell III from Gilligan's Island. I love how they traveled with a trunkful of money (not too mention the clothing etc.)