Everyone is going to have different opinions about this, and it really depends on your child, your touring style, etc. Our first trip (in Nov. 2013, we brought two... one for our just turned 5 year old and one for our 2.5 year old. They both needed them quite a bit, but we pretty much stayed in the parks the whole time they were open, and were there for five days. This time (Aug 2015), we brought one stroller for our almost 4.5 year old. The almost 7 year old rode in it a few times, and the 4.5 year old rode in it a fair amount. Once again, we were in the parks a good chunk of the day (we did take a short mid day break this time, but were still in the parks for a long time most days). We also went 5 days this time. I know some people think older kids shouldn't be in the strollers, but those same people would probably give the side eye if your kid threw a temper tantrum from getting tired. To me, it makes much more sense to prevent the meltdowns by putting kids in a stroller (even if they never use them at home)