This is my pet hate, people who think it's ok to trade up for a better offer.
If they can't make a commitment to want to come to an event (and it's not a legitimate reason like someone being sick in hospital and they REALLY don't know if they'll be free)
then I'd think twice about whether u want them there.
I have a huge family and nonone RSVPs to anything - 10% reply rate if I'm lucky.
The only ones who reply are those who can't come, those who can assume we know automagically because they didn't say they couldn't.
We had 110 at our wedding and 80% of this were my family. I can count on my fingers how many rsvps we got, and very few people did not come.
I had to ring them all on the RSVP date.

