It's funny how pandas have become such (pardon the pun) political animals. The idea that an outside group would vy for having pandas in their state speaks to efforts to maybe score political points with China given that pandas are not nearly as contentious as other economic or political avenues.
The loan terms for pandas are expensive and I'm not sure if the increased revenues from having them in a zoo are enough to break even. Perhaps if outside funding were used specifically to create an endowment for the care of the animals and for paying the annual loan costs then perhaps it would be less of a financial burden?
Still, it can't be denied that hosting pandas at a zoo in your state is a status symbol of sorts. And anyway, when China gifted the United States a pair of pandas in 1972 the First Lady donated them to the National Zoo, so there is a precedent for receiving animals without a zoo initiating the request.
Then again, that was long before China began "loaning" the animals out and demanding payments. If I'm not mistaken, however, the USFWS requires that at least 50% of those payments be funneled into direct conservation efforts.