We have no set vacation budget. We decide where we want to go, and then I do the best I can to plan a nice vacation at modest prices. We use airline miles when flying to Europe or elsewhere that's quite expensive (Alaska). In places with high hotel prices, I usually use hotel points for free hotel nights OR bid on Priceline.
I spent $10,000 on a 3-week vacation in Europe last summer with my two adult daughters. I used FF miles for the plane tickets, we stayed 3 nights each in Paris and London (and took the Eurostar train between the two cities), then went on a 12-night British Isles cruise on Princess. When the cruise ended, my daughters flew home, and I stayed 2 more nights in the UK. That was the most I've ever spent on one trip, but I think I got a lot of bang for the buck.
I spent $10,000 on a 3-week vacation in Europe last summer with my two adult daughters. I used FF miles for the plane tickets, we stayed 3 nights each in Paris and London (and took the Eurostar train between the two cities), then went on a 12-night British Isles cruise on Princess. When the cruise ended, my daughters flew home, and I stayed 2 more nights in the UK. That was the most I've ever spent on one trip, but I think I got a lot of bang for the buck.