Same principal. A very few might hit the tables but the majority are for bilking the public and advertisement. Not what I call a 'real' chip but then again only in my definition.
Dick Staeffler
P.S.
By the by, I got the George Burns $5 chip in a gift shop in Las Vegas ( at a premium) as a present to my son's wife. She is nuts about him.

P.P.S. Last words