Its nice to have a little something on the game, it makes it more meaningfull, however, you should not bet too much that if you lose you will feel bad. Money is just the way to keep score. I have just as much fun, even more, playing for $5 a game then when others bet much, much more. I can afford to bet anything I want, but I am not doing it for the money. If I win, I usually buy a dinner or drinks anyway.