Yes, there is a cash prize, usually $1,000 to $1,500 cash(check). If you win enough during the course of the year, you have to pay taxes on your winnings.
As far as sea sickness, No they don't , well let me just say I have never seen bass puke in my live wells.

, There is a chemical called re-juvinate that you can pour into your livewells which calms the fish down from being to excited. Actually, the bass guys/gals take very good care of their fish. Most know how to deflate(FIZZ) a bass that comes up from the deep water and thier bladder swell up with air, and if you don't fizz them, they will not be able to return to the deep water. Yes, you might have a casualty now and then, But is is againest the rules in any bass tounament to cull a dead fish.
These aren't Pro's by any means !!! LOL, these are guys and girls just like any of us, that belong to a bass club, and the club members are the ones you see out there fishing. NoBozo, you could join one of the clubs and be out there with the week-end anglers.