Everyone complains that getting people to RSVP can be a huge pain in the ass. I've gotten to the point where I need to start reaching out to people who have not RSVP'd yet... it's going about as well as I would have guessed, and though some declines are expected (and some unexpected that sting a little), what I cannot abide are the BS excuses some people give - I would much rather they simply decline and leave it at that, rather than tell me that they can't miss a few hours of a 4-day tabletop gaming convention (that I had never heard of) to make it to my wedding (even though I went to theirs which was 4 hours away). Yea, yea, nobody cares about my wedding as much as I do, but that doesn't make it hurt my feelings any less... of course I'm not going to call them jerks or guilt trip them about it, but I will remember that they chose to go to a convention that happens every year rather than my wedding. FYI I usually go to an anime convention every year - I would skip it for a wedding.