I guess I don't see the "dilemma"... If someone asked one of my kids to go with them, I would assume that I'd have to bare all or some of the costs. I don't think most people would expect their kid to get a free Disney trip. We just went though this exact scenario. We've decided to go to WDW for Christmas, and our daughter has a friend that hasn't been to WDW since she was two. She went to Florida a couple of months ago with another family and had planned to go to WDW during it, but due to some things that didn't go according to plans, they had to axe the WDW portion of the trip and my daughter's friend was very disappointed. We wanted to invite her on our trip for another try at WDW, but decided to talk to her parents privately beforehand to see if it would be OK with them. We offered to cover the lodging and food if she could cover the plane ticket and park admission. The parents loved the thought, but since the trip covers Christmas, they (understandably) didn't want her to be gone during that time.