For Columbusonian--Thanks for asking. #2

"I'm curious to see where you would have rather seen the money spent in the zoo." I would contact the Bellagio or the Luxor and see if they wanted to buy back this "atmosphere". Point out that you can never have too much realization in Vegas, if it will help tip the deal. I would toss in the extinction bell if they gave me a good enough price on the entrance's.