It's truly amazing, though, people's willingness to assume that their opinion is of the utmost importance. I actually had someone I work with tell me that going away to get married would look bad. Um... whatever. God bless my parents who were all "anything you want, anywhere you want... just tell us where to be, when to be there, and what to wear." If only everyone was so accomodating...
It's YOUR wedding, it's YOUR day. Do it exactly where you want, in exactly the way you want. These are memories for YOU. If someone wants to gripe about it, cut them off quick and tell them that you'll be sad if they can't make it, but you'll understand.