We travel a lot to Germany since my husband has family there. We branch out after that, but stay somewhere within driving distance of Frankfurt.
This summer, though, we took a big extended family trip to Ireland. My husband and I had been there before, but it's been 12 years, so it was good to go back.
We did take a hop over to Germany to see his family while we were "in the neighborhood" and were surprised at how much cheaper things were there. In Ireland, beer at the pub was 4 euro/pint, which is about $6 with the lousy exchange rate. In Germany, it's about 2.50 euro. A plate of fish and chips in Ireland at a pub will cost you 13 euro, but schnitzel in a restaurant in Germany is only 8 euro.
We'd love to take our kids places we haven't been yet, like England or Italy, but we also have to consider that it'll probably cost almost twice as much to go there as it would to go to Germany and Austria.