Unfortunately, not all meteorites are worth lots of cash.
It depends on the mineral make up of the meteorite.
The states where there is snow for long periods of time are the best places to find the meteorites.
I hear the great lakes are good for this when they freeze up.
You just have to look for the black marks in the ice and chip them out.
I have hunted gold, diamonds, aquamarines, rubies, sapphires, Amythest,smokies,phenakite, etc. etc. etc. and I have never found a meteorite that I know of.
There are more than just meteorites that will buy you a hemi.