That's the argument about AK that always annoys me. "It's not like there is an overabundance of rides at the park". As if the walking trails and shows are completely worthless. AK is a unique park. In addition to "rides", there are three live shows (as of this week, in fact), one 3D movie, and two main walking trails and worth experiencing. If park commandos would only stop and take the time to enjoy everything there is to offer in AK, it wouldn't be the "half-day" park as they claim.
I agree. Animal Kingdom shouldn't become a park that's overrun with rides - although it could use 1 or 2 more to spread out the crowds a bit (especially if the new ride(s) aren't E-ticket level, but still good enough to draw people away from other things in the park). I've never done any of the trails at Animal Kingdom, but I'm hoping to rectify that on my next visit to the park. At first, I didn't even know about most of the trails, etc. at the park. I knew about the train but thought it was just a thing for kids (and wasn't even sure where it was, anyway). On my next visit, I plan to do the Gorilla Falls trail or the Wildlife Express, if not both.