I read somewhere that casino Hosts are inundated with gifts from players: gift cards, candy, ties, colognes, jewelry, scarves, etc., and often pool the items for employee party favors/drawings etc.
So I quit worrying about it (after numerous gifts and not always having them acknowledged...especially by male Hosts--don't moms teach sons to send thank you notes?).
I'm sure some still appreciate the effort.
I figure I'm doing the Host a favor. They don't have to send me a thank you note, if they are so inclined