The good player gains the following advantages by filling a poker game to capacity:

• The game becomes more stable.
• More sources of income (players) are available.
• Choices for selecting profitable opponents (losers) increase.
• Losses are spread more evenly among losers.
• Confusion increases.
• Greater control over the game is possible.
• Betting pace and stakes are easier to increase.
• If tight play offers better edge odds, any such tight play is less obvious and less resented in a full game.

A poker game is expanded by adding new players and by improving the attendance of current players.