My husband likes Disney but would like to do other things, too. That said, last year my dd and I took a short, budget WDW trip while he stayed to get work done-- the previous year we had sacrificed a lot for something that was his deal so this trip was sort of my payback. He was excited for our trip but right before we left he seemed a little depressed, and he ended up being very sorry he didn't go, and we were very sorry we left him. It was great having a mother-daughter trip, but I don' think we'll ever leave anyone behind again.
We're all going in September. For him, it will be 3 years since his last trip, so maybe he is ready. But next vacation I have to plan SOMETHING else. That's fine with me-- I really like Disney now though because it is such a hospitable place to visit when traveling with smaller kids. As the kids get older, we'll branch out more.