I found this blog entry on Martha Stewart Weddings about what not to say about your DW really helpful. Especially this:
2. We're getting married there because it's so much less expensive.
It may be less expensive in another region to have the elaborate event you want. But if the end result is that your *guests* are spending more to travel, you may leave the impression that you're happy to save money at their expense.
More here...
http://blogs1.marthastewart.com/weddings/2009/11/what-not-to-say-about-your-destination-wedding.html