People like to think that if you can build a winning bot you can easily run it on a dozen computers and rake in millions of dollars. In reality, the logistics of running such an operation are prohibitively difficult--at least if you want to stay within the bounds of the law.
Once upon a time Party Poker offered a guaranteed 10% APR on all balances up to $10k, paid out monthly given a certain relatively small level of pay. I imagine their multiple account detection process back then was relatively crude compared to what Stars has now, but it caused me some pain. And I know Full Tilt is very good at it now.
The money was a nice, but it really wasn't the primary goal. Plus, in order to maximize profits I would have had to tread in a lot of murky waters that I didn't want to be near.
For example, say you have a roommate run the bot. How do you get the profits from his poker account into your bank account? Not as easy as it might seem.
But in those states, perhaps. I never had to pay an attorney to review that :)
Anything specific you want to hear about?
This topic is important and deserves a long discussion--its one of the main things I want to write about in the future.