I'd say about $7, but I'm willing to go $10 with shipping.
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Sorry, just kidding. If I'm not mistaken, these were a second generation after Bugsy, and while canceled and sold as key chains a half-century ago, still bringing $250+ a year ago. While a number of scarcer chips seem to be off at least 50% for spot ebay sales, the intrigue of the Flamingo probably props this chip up better than most.

Unfortunately (or fortunately) there are not going to be a bunch selling on ebay in the next year to actually get a firm price......that's lucky, right? Well that wasn't much help. Now I want to know too!

On the other hand, my offer still stands.

AL