Thanks to everyone for such wonderful responses!! Y'all are great! There is such a range of things I never would have even though of!
The thought of splitting up the kids two by two did cross my mind, however I'd rather not do that for a couple of reasons. First of all, they are very close and on the rare occasion one or two aren't able to attend an outing with us, all I hear about is how much Ashley would have loved this, and Autumn would have loved that. I don't mind a bit cause I think it's so sweet, but they really miss each other when they're not together.
Another reason I would hate to split them up is because there's just no way to know what the future holds. Heaven forbid something unexpected happen to prevent the second trip, be it health related, financial or otherwise. I'm by no means Miss Gloom and Doom, but after the recent death of one of my old high school friends due to a brain aneurysm, I certainly understand that nothing in this life is definite.
I also understand what everyone means about going alone the first time. I've definitely thought of that too, but my husband and I have already traveled across the US quite a bit. We've been super blessed and have had great times together, but I can't help feeling a little selfish. It's been all about us each time. I think it would be good for us to put ourselves second this time around.
Bran, you're correct, I have never traveled long distance with my nieces and completely agree that it could be chaos. You (and everyone else) brought up so many things to seriously think about.
And regarding my sister, we do have our differences, but we're close enough that she will tell me if she has any hesitations. I do remember a few years ago when my sister and her DH were going to Chicago for a weekend and we had the kids. I asked her if we could take them to a kids Ice Capades show and she agreed, but said she was really sorry she wouldn't be able to see their faces. (We took lots of pictures for her!)
I would never want to take the opportunity away from any parent to miss their kids faces at Disney World. I'm not even a parent but I can't imagine how difficult that might be. So now I'm considering an alternate solution. I originally wanted to stay onsite but my friend referred me to her Aunt and Uncle who rent out a vacation home they own in Orlando.
It's about 8 minutes away from DW and it has an in-ground pool, with a hot tub, 3 bedrooms and can comfortably fit up to 8 people. They usually rent it for $130 a night, but for us said they would do $80.00 a night since we're a direct referral. I'm not sure how practical it would be for us to stay off site, but with an arrangement like that, we'd certainly be cutting a bit off the cost of a resort stay, and could apply the difference to cover my sister and her DH. I'm hoping that if we completely cover the cost of the vacation home, maybe they could meet us half way on their plane tickets and admission passes. Again this all depends on their marital status at the time, but I will let my sister determine what's best for that route.
If they do definitely split, another idea I liked is maybe just my sister and I taking the girls. I don't see my DH objecting at all. He's really sweet when it comes to family problems. When my Uncle passed away last spring, my mother was devastated. He lived several states away and due to the cost of the flight, she would be unable to attend the funeral. The minute my husband found this out, he immediately booked a ticket for her. No one even hinted at the idea, but that's just the kind of guy he is.
I don't know, I'm going to have to really chew on this. There's so much to think about!
Oh, and whoever it was who cautioned not to breathe a word of it to the children unless all permission was given and everything was 100% set in stone, absolutely no worries at all!! Boy would that be a recipe for disaster!
