I spoke with a dealer at the newly opened poker room at the venetian after he dealt the big game that was being played in the 'salon'. They were playing 4k/8k and the players have their own stack of chips for tipping. Each dealer works in 30 min rotations. At the end of each dealer rotation all the players in the game would throw the dealer a $5 chip. The players in the game that night that I recognized were Greenstein, Harman, Chip Reese, and Phil Ivey.I did hear another story at a different casino. Dealer told me Gus Hansen tipped him 30,000 after he won a 1.2 million hold 'em pot. p.s.