Assuming everyone is healthy and full of energy...go whenever you want to go. There is nothing at all wrong about parents wanting to do things when their baby is little, assuming of course everyone is fine. Being someone who was utterly exhausted (found out when DS was 4 that I had had a near tranfusion-worthy hemoglobin level and no one cared to share that with me) and who ended up a bit of a hermit for various reasons, I will tell you that that is NOT fun. If I had known we would become Disney fans, I would have gone much earlier. We actually started taking DS when he was first 1 and then 2. We were in San Diego visiting my brother, and did 2 one-day visits to
Disneyland. It was AWESOME. He was so easy! At 17 months old he was just in the mei tai wrap, with a bit of walking, and had a great time. A year later he was in a back carry in the Ergo, walking a bit, with a rental stroller just in case, and again he had a great time. Honestly it was when he turned 3 and started developing his own opinions that it got at all difficult. But the trips when he was 3 were terrific in different ways. Same at 4, same at 5. etc. Now he's 9 and has grown up in Disneyland, Disneyworld, and now Universal (he's tall enough for ALL rides), and it's nearly seamless for him. They are "places we go". YOu guys are DVC members (as we are) and were before expanding your family (we bought when DS was 4). You obviously like the place. You've obviously made plans to be there for years to come. No reason to delay anything when you want to go, again, assuming everyone is healthy. Unsolicited advice time... I highly recommend Beco and Ergo carriers, though wraps are awesome when babies are tiny. When on the front, babies should face the adult wearing them, both for the sake of their spines and pelvis, and for the sake of the wearer's spine, and also so they can see their adults and not just face out towards strangers for hours on end. Just figured I'd throw that out there now, so you don't have to unlearn bad habits caused by how people use the more mainstream carriers (a pox on Bjorn).