Tipping is one of the other source of income for the dealer and most of the time they earn more from this compare to their salary. You gave tips because you are satisfied for their services and for sure that guy enjoyed well playing with that dealer. Tipping a car a big one, lucky for that dealer maybe that gambler won millions of money. Tipping is fine for me as long as I make profit.
I agree with this.
Aside from their daily pay, the tips these dealers get from the players help them to get by much easier.
I have a cousin who is a casino dealer and she attests that tips from the clients definitely make a change in her finances. However, not every casino allows their employees to accept tips, so be sure to know whether the casino you are playing on allows or prohibits this act. Because as much as you want to show your empathy and gratitude due to satisfaction of their service and assistance to you, it might be a reason for them to be terminated if proven they've breached the protocol of the management.
Personally, I ask whether it's allowed or not before I give a tip just to be sure, and I do this in general especially if someone assisted me patiently or helped me with my concern.