The heck with it!
That's sorta how this trip is happening. My husband has been saving, secretly, for months and he just told me about the savings a couple of weeks ago. We still have a good deal to save, but unless he looses his job or some major medical emergency happens, there's no reason in the world we won't be able to do it. If something does happen, we have the trip insurance so that should help. In the meantime, between now and our 45 day mark, we're not eating out, I'm cooking from scratch, and we are saving like mad. By the time the trip comes, we'll have already paid for it all in full plus saved enough for us to have mad money.
Are there other things we could do? Sure. We could totally use a second car, we could put 5k toward our one car and be that much closer to paying it off. We could go to movies, send our son to pricey summer camps, buy that new TV my husband wants; ours is old and television is not a priority to us. We don't have cable and we don't even get local channels because we opted not to do the digital conversion. We get Netflix through our Blu Ray player, but a new TV would be nice. We could buy a gaming system (I think we're the only people in the world who don't have one at all) and a bunch of games, we could just sock the money away for a rainy day. But right now, those things aren't a priority to us. I think that two WDW trips in five years (one of which is completely paid for in cash before we even leave) is beyond reasonable and isn't going to tank the economy any further than it already is.
Right now, with my husband working 80 hours a week (full time job and starting a new business) and my son only getting older, a vacation--no, a magical break away from the grind that we have been living for years--trumps all the other, more seemingly responsible, things we could do with that amount of money. Saying "To heck with it!" is a priority for our family right now. It's given our son something to look forward to, it's given us all a goal and it's given me patience to understand that, for right now, my husband is working his butt off so that he can be his own boss in a few years. Unfortunately, that means that we don't get much family time together, and that makes me feel upset and cranky sometimes; planning this trip with the two of them over dinner is a life saver for all three of us.