I haven't read every reply, but I have to say I agree with both sides of this issue. In the case of a troubled marriage, I think vacationing on credit isn't wise. Being overcommitted with creditors is nothing but stress, and will do more harm than good. Instead of one major, expensive vacation, why not commit to a date-night every week, or every other week instead? There's no way the issues in a marriage can be worked out in one shotgun blast trip...rather, it's more productive to have regular one-on-one focused interaction. Also MUCH cheaper than a vacay!
Regarding whether you NEED a vacay or not, a few years ago, I'd have said no. My DH and I have been married for 16 yrs, and have two kids (11 and 5). We would take a couple of 3-4 day trips a year, but never took any big, blowout vacays. We do NOT finance fun. We have NEVER put a vacay on a credit card...don't have any, as a matter of fact.
HOWEVER, when we went on our first Disney vacay 4 yrs ago, we saw how incredible it was to spend 9 solid days with just us, having fun, no worries, no concerns about "regular life," and it was such a game-changer for our family that we committed to doing it every year. It's a big sacrifice because the trip isn't cheap, and as I said, we don't do credit. But the memories that we're making with our kids are worth every home-cooked meal, every "but it's on sale and I would LOVE to have it" denial, not driving a new vehicle, etc.
So, yes, we do NEED vacations. And NO, we don't lol. Just my .02.