I love a gambling game that's got just enough complexity to get you thinking (while you can think at least.)
I mostly ignored the dealer's roll though, he showed a lot of 1s on a d2. If he showed the higher roll, it might encourage more risk taking by giving a higher floor that needs to be beat. Showing whatever was rolled first, or maybe saying what size die is hidden might also just get the player thinking more.
Now low INT gambling was where things really started to get interesting. I love tangible consequences and increasing risk.