Is there any place there isn't?
Yes, there are Starbucks in both the El Dorado and the Silver Legacy. There is also a small coffee and dessert shop in the hotel lobby in SL, and a coffee/pastry/ice cream shop in the El Dorado very near the fountain.
Why yes there is
The Starbucks is downstairs at the Silver Legacy. You take the escalator down to the casino and its located straight back. You can't miss the big Starbucks symbol.
There is a starbucks at casino level at the Eldorado
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