We're planning our first trip as a family and we've decided not to buy the park hopper option in advance. I've been reading the DISboards and realized that there's way more in each park that we could see in a week, so our plan is to spend 2 days in MK and one day in each of the other parks. If we get to a park and decide we don't like it (AK is the only one my husband and I haven't been to, but the kids have never been) we might consider adding the park hopper option to go to another park. I don't think that will happen, though.