I'm going through the exact same thing. My 2 favorite things I've heard thus far are:
* "Well, are you at least going to pay for everybody to go?" and
* "Evidently you planned on not wanting anyone to attend your wedding, otherwise you wouldnt be going overseas!"
I can only imagine some of the other things I'm going to hear! But like someone else said, I could care less if it was just me and my FI. Of course, I would LOVE to have all of my family there, but before I even started planning, I knew some of my family would flip. But this is what my FI and I want and NO ONE in our family/friends is going to change that. You would think that they would realize how much stress you already have with trying to plan a wedding! For once in my life, its time to be selfish. lol.
Besides, you can always send them a postcard! lol