My answer would have been (and has been)..."I'm so sorry, but I already have my travel plans made, and that is when we are going. Would you like me to cancel your room?"
I'm with you on this one, if Brother is going with you as your guest, he should be thankful for anytyhing and everything.
Pick what is best for you and your immediate family and others can come or not at their choice.
But that's also why they get invited back. It would have to be a very serious reason for me to consider changing my vacation plans.
It really has gotten out of hand with all the extra activities that children participate in today. I think parents have good intentions that go haywire sometimes. 


