Originally <a href='/showthread.php?p=16966830'>posted</a> on 12/01/2012:

Quote Originally Posted by SBR_John View Post
Books are in business to make money, kind of like every other business. Insurance companies raise prices to high risk customers and books lower limits to players that put the book at risk. Increase your bet to the max in the middle of a single deck BJ game in vegas and they will stop and shuffle. Its simple risk control and it happens in just about every business to some degree.
No, it doesn't. In a real, regulated gambling business (stock trading), you can't offer certain prices to certain customers only, based on your perception of their skill level. Any market made on the Nasdaq, for example, is there to be taken by a giant hedge fund or some 18-year-old's $100 account -- doesn't matter. You cannot check the source of the bid and then shrink your offer size (or shift your market) if you're nervous the source might be sharp.