I can see why you would think that way. But, people weren't paid to leave the city. The people were evacuated either by choice preKatrina or through
a mandatory evacuation because the city was simply uninhabitable, no water, gas, lights, phone, commodities, etc. and crime was running rampant.
Everything was shut down due to flood waters and extensive damage.
People were given just a little over $2,000.00 to help them ride the hump.
Normally when one evacuates for a hurricane, they are gone two maybe three days, if all goes well, and they pack clothing and such for a minimal amt
of time. We couldn't return to the city for almost a month. Think of a family of four and the needs. Clothes, food, shelter, deposits for all
utilities for renting a place, gas, etc. That money didn't begin to cover the expenses.
The people aren't coming back because their homes were completely destroyed and insurance won't cover their losses or they simply didn't have
insurance or public housing is no longer available, or they found better opportunities and quality of life in the town/cities to where they
evacuated. The reasons are numerous.
Yes, the city population is less than half of what it was preKatrina. However, all neighboring suburbs are up and running. I live in a neighboring
suburb and I'm only about a two minute drive from New Orleans. It's not like there aren't eyes watching what's going on here.
I really don't think the recent oil field discovery off the coast had anything to do with Katrina. But who knows, you could be right and I am totally
clueless. LOL


WOW! I have no idea how they managed that. 
Probably the quality of life, I'm sure.