I can't say that i have nippy ball pythons...My suggestion to you is to get your feet wet and get some ball pythons from some of the wonderful breeders that are on this site.

They're awesome starter snakes. I've never been bitten.

The ball python market is awesome. If you play your cards right, then it could potentially be a great business. But don't bet your life savings on it.

Check this link out, and see just a small fraction of what's out there right now.... NERD Ball Python Collection

Also, have a look at the Ball Python Caresheet.