When I first moved to Seattle I decided to try one of the local tribal casinos. One of the close ones was Muckleshoot.
I was generally impressed -- it was reasonably clean, and even offered a non-smoking area with both tables and slots. Their minimum bets were reasonable, and they weren't overly packed so it wasn't tough to get to play.
The drinks aren't free, but the comps were fairly generous. After only a few hours of low-stakes blackjack I had managed to earn a free buffet. Perhaps not a rival to a vegas buffet, but certainly decent in its own right.
If you need a nice break and want to try losing some of your money, Muckleshoot is probably one of the nicer casinos in the area to try.
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