A comment was left yesterday which linked to an article about The Stage Door Casino, and it's odd sign.
The article is actually very good, and I would like to offer the link here, in the event that you missed it in the comments.
Something else I would like to point out. When visiting Las Vegas, pay at least a little attention to the oddities, as they are vanishing.
Maybe you have 23 years left to check this small place out, and take a picture.