I took a stroll through Downtown this afternoon, and in addition to the El Cortez and California I already knew about, Fremont and Fitzgeralds are also verified as still using dollar tokens. (The Fitz also had old style coin pay slots in 5 and 25 cent too)

I would bet since Fremont and Cal have them, Boyd owned main Street likely does too, and wouldnt be surprised to be able to find them at the main cage of many places, even if they arent used in the slots. I saw the Fremont using them in abundance at BJ tables, too.

Also saw Jackie Gaughan again, looking quite good and energetic for his 90+ years, walking around on his own power and playing his daily game of poker. Always nice to see living Vegas history from the early days, and he is the last example, I believe.