Money and timing
He could acquire a rundown amusement park and rehab/renovate/restore for dirt cheap opposed to starting from scratch elsewhere, where the national economy has bitten a bit harder...yes i said it, New Orleans isn't facing the economic troubles and hardships that other cities around the country are (Thank you oil ). With the city's recovering process gradually moving forward, a park could spark the future development of one of the hardest hit areas, NO East.
If the park were to open and prove successful, the East would flourish once again (bandwagon effect.)
Also, there are several ways to acquire funding for the park that aren't available in other areas. We have gozone funds which are for the rebuilding efforts of the harder hit areas, which could possibly lower the cost of building the park.
Or maybe he might not succeed, but if someone is willing to take a multi-million dollar mess and attempt to reopen it and turn that mess into something shiny and new that benifits me, I am going to be the last one to shoot down their stars. So theres no reason to knock his plan, just hope for the best, but don't give your hopes up if something takes an unexpected/expected turn.
And sorry if I come off to you as a grouch, I'm a really nice guy and all, just get defensive over my turf and park