Well, for most of the public, the "majestic" elk is more impressive than the more esoteric, rare, but rather ungainly Pere David's. And I've rarely ridden the Wild Asia monorail without hearing people complain about being bored seeing "more brown deer."
Well of course. This is just the Zoo-nerd inside me talking. And this usually goes against whatever most of the public would prefer..
I've never considered elk boring at any zoo, and would enjoy seeing Tule Elk in LA again. Elk are one of the most beautiful and majestic deer species in my opinion. But I'd also enjoy seeing Pere David's Deer here again as well.