I'm trying to figure out the usefulness of the buy in. Except from barring people having less chips than 250 to play poker, what does it do? If the buy-in on a table is 400, and in total I own 800 chips, I can bring 600 chips to the table. Why would (wouldn't?) you do so? Now, I understand 'buy ins' if there's a house raking in a percentage, or if everyone starts with the same amount, and you play to some people are eliminated, but here there's no house and people are free to enter/leave each round. So, how much does the 'buy in' enhances the players experience here at BK?