Jeff, maybe you should go for couple of tiger sharks instead?
Why not?
I'm no fool and I know that would be pretty stupid.

Do you really think a several thousand gallon tank will be
a good habitat for a large and active fish like a shark?
Stop kidding yourself.
I have not been there for years but the Camden, NJ aquarium had/has a
50' long about 15' or so wide...I'm guessing oval tank with all kinds
of smaller sharks that hunt in schools like dogfish and arabian cat
sharks.
You could actually rub your hands on them as they swam past provided
you washed your hands and then rinsed them very well in front of staff
at the sink there.

If you want to see sharks watch them in nature - cheaper and helthier.
Shark in aquarium will NEVER expose natural behaviour, so
what is the point of observing them? Its like a polar bear in a cage.
Rather stupid idea.
You are somewhat right about that. Sharks will always grow faster in
captivity when fed on a regular basis b/c they have to expend far less
energy to hunt and they are always successful at taking food off a
pole. Any captive animal that is large in size and roams more than a
feasible pen/tank would allow is going to act differently in
captivity. You can't really observe natural feeding behavior and
tactics in an enclosure unless you want your other stuff to be
attacked and then its not realistic b/c the prey can't escape in an
enclosed space.