Leaving in 2 weeks (yikes!) with a 4 year old (turns 5 while we are there), 3 year old and 16 month old. I have really, really wrestled with this issue. After trips to the local big zoo on a hot humid day and the local 6 flags, we are bringing two strollers. A single and a double. I did buy mcclarens on ebay. They fold like umbrella strollers and have carry handles (had old, heavy gracos). I will keep the single and use it with the baby at home. I will probably also keep the double for year to use with the two younger ones. Then I will sell it I guess. They seem to have great resale. It really depends on your kids personality, how long you are there, how hot it is. Some people will argue "well my kids walked the whole time since they were three".. and there may be some kids that can do that. I know my oldest is not one of them. He made it clear he is not walking the whole way. The day at the zoo was long and hot. After about 4 hours he wanted to ride. Out came the 3 year old. Half and hour later she wanted to ride. Out came the baby for mom to carry. About an hour later Mom wanted to ride! Rentals only get you around the park, not through the parking lots late at night. Not at your hotel. I loved the story of the parents whose oldest kept trying to lay on the side of the path to sleep. I just couldn't see spending 250 on a rental when I can spend the money on a stroller, have it at home or sell it and get part of the money back. We will be using Disney busses, staying at POR. My DH will probably carry the strollers and I will handle the backpack and get the kids on. It may not be super easy but seemed like the best choice for us. It just wouldn't have been worth the whining and fighting all day.