This thread has been so disheartening since I seem to have such a different philosophy than most people here. I think I'm pretty much the only one who told the OP it's okay not to let his child go. I don't believe he's doing anything wrong by having those feelings. Every parent parents differently, but pretty much every parent has some things they say no to. His children will be just fine if they don't go on fancy vacations. They'll be happy if he can help them have less debt for college.
Reading this thread tells me that most people here would disagree with my priorities. I would have said no to my child with no guilt whatsoever if it didn't feel right to me because I just don't "get" the need for extra people on a family trip. I still maintain there is nothing wrong if OP simply isn't comfortable with it. Sure, if everyone is all for it, but why the "how dare you not let your child go" stuff? The "don't save money for their future, go on fancier vacations" thing absolutely floors me. My adult kids thank me regularly for their lack of student loans. While we had the ability to do both, we most certainly sacrificed some vacations for post high school education funds. It would have been fun for my kids to do Disney every year, but that would have meant no education fund that year resulting in loans now. They enjoyed the years we camped or just visited grandparents as our only vacations. If it had meant we camped for all our vacations, I would have been fine with that. I'm a big proponent of NOT giving my kids everything, but for education I'd sacrifice.
The OP is fortunate enough to be able to save for an education fund. He takes his kids camping. Those are things to celebrate. It absolutely floors me that people seem to think his children will be missing out if they aren't allowed to go on someone else's family's vacation.
I know this is a message board that focuses on an expensive vacation destination, but when, using just one example, someone is talking about how they paid all expenses for another child to come on their trip and they "only" brought $100 spending money. Yikes! Have we really lost perspective that $100 is A LOT of money for most people?