In a casino enterprise, players earn reward credits from their betting activity at gaming machines, tables and devices. Base credits are earned by players at a fixed rate according to their coin-in; bonus credits are earned at a variable rate as a function of their worth as players to the casino or the property at which they are gaming. Preferably the fixed credit rate is published to the players while the variable rate(s) are not disclosed. The earned credits are combined for the player into a single account balance, from which the player can redeem credits for comps.