The Magic Kingdom has 4 times as many rides as DHS, that's a horrible example. You can skip Peter Pan because of it's line and there are plenty of options in the MK with shorter lines. Those options are few and far between at DHS. Choices are a good thing, but you're going to need a lot more than 1 or 2 rides at DHS to see the wait times drop significantly at Toy Story. I also suspect you would not see the wait times cut by a 3rd if a 3rd track is added. The assumption is that not everyone that wants to ride Toy Story is currently riding Toy Story.Nonsense. It absolutely gives people choices. I choose IASW over Peter Pan all of the time because of Peter Pan's wait times (therefore also lowering Pan's wait times because it's one less family riding it).
I have other things to do at MK. There's little else to ride at DHS for a family with two small children.