I keep reading about how much trouble silver strike machines can be for casinos, and I wonder why there aren't more $20 or $40 machines, which I think might make them more money and require less filling. I don't remember any $40 machine in Vegas now. All the $20 machines are $1/play, and I play them! I'd like to play a $40 machine, because those are (were) all-silver. I read with great interest that Caesers will be adding $20 (or was it $40?) and $200 machines (that one at $5/play,and I will try it!).