That is what I'm worried about, although we will be renting a car for us, and I suspect most people will be doing their own excursions separate from us (we'll be doing things geared to our kids ages, not adults lol) I think it's a bit different because we aren't going somewhere all inclusive, so while we want to split housing costs like this (a week will cost what two nights would at a hotel,) the actual vacation planning will be up to each individual (although we'll provide a list of nearby attractions/points of interest and our plans for anybody who wants to come along with us.)