Lol, well I guess I have to
at the notion that any kind of family vacation with young children, whether on or off site will be a vacation for the mom (unless you bring a nanny or something). The only way I would ever feel like *I* were on vacation is if I went somewhere w/o my kids. If my kids are going to be present, it's not going to be a vacation, regardless of the, "disney magic." Sorry, I don't care how good the magic is, it's not strong enough magic for me to feel like I can relax and be on vacation. However, that is just me... maybe other ppl are able to relax during vacation, I find it stressful and mostly it's about the kids enjoying it and not me.
Let us know how your pros and cons chart goes, lol. I can see pros and cons of both situations, I think in the end it's just basically about you and your family's preferences.