Some years about $10K, other years much less. Last year we went to Florida for NY's week, stayed with friends for three nights and then high-end hotels near Naples for 5 nights. Add airfare and car rental and that was $3200. Later that year we flew to visit family out west coast, paid $1700 for tix and rented a house for $3000, plus a minivan rental.
I have enough miles to go to the Caribbean now - but only one of us.
This year we stayed with local friends for a waterfront spring break, went camping for the first time with the kids over several weekends ($15 - 30/night, fun! beautiful! stars! smores! deer, waterfalls, beach...) We may spend about $1100 this summer for a midweek getaway - save on hotel costs by doing stuff at home that needs to get done anyway on the vacation weekends.
We always rent a car for more space and no having to clean it afterwards
For me camping is fun, it is something we like to do, but not a substitute for a "regular" vacation. I day dream about driving out to go to dinner, but once I am there I tend to prefer cooking by the campfire and end up only eating out on the way home.