First off, my fiance' and I live in a tourist destination and are planning the wedding close to where we live. Our families are from two different states, and time zones. We have assembled a very short list of 'must invite' friends and family. We both have rather large extended families that we don't want to invite to the wedding because they would show up for the convience of the theme parks near us instead of our wedding.
What is the proper etiquette for having them involved but without them actually being invited to the wedding?