[SkittleBrau]

I think it would be fine if you offered it to everyone and called it a Frequent Player Comp or something. Then just tier the rakeback percentages by number of hands played, so that you are only paying a really good percentage back to the very high volume customers. Thus, it would still be appealing even to casual players (hey if I just play 1000 more hands this month I can get that 5% rakeback). Of course, it might be best from a marketing standpoint to keep the word "rake" out of it entirely and hence the "Frequent Player Comp" or some other equally positive name.