We (DH and I, no kids) change rooms for two reasons. First of all, we can extend our vacation time by staying at less expensive rooms for part of the trip. And second, because we like having different scenery and utilizing the different options at each resort/hotel. We only buy the 5 day park hopper plus tickets, but vacation for two weeks. While we are staying off WDW property at typical chain motels, we visit the WDW parks, and water parks and Universal and/or Sea World. Since we do all the parks commando style (getting there at opening, staying till close) we are at the hotel only to sleep on those days. I know that we have to pay the parking fees this way, but we'd rather take advantage of all that the resorts have to offer when staying onsite. Plus we never completely unpack, and for the most part, live out of suitcases, so it's not a big deal to move. On moving day, we check our luggage into our resort early in the morning. Then spend that day touring all the WDW resorts, eating breakfast, lunch and dinner at a different resort for each meal - usually starting the day at Boardwalk, ending at Fort Wilderness. We also use all of the WDW transportation that day too - monorail, boats, busses - which is fun in itself.