Well NO 1 they are not lammers, they are chips.
Minimum made 2,000 and more made in some years.
Most were dumped on the chip market. Many were sold in the gift shop at the Shoe.
I recently saw over 3,000 (mixed years) that will be dumped on the market soon.
IMO "Very Rare" used for a chip that has a selling history of $7 to $80 is sales hype to trap un-informed buyers.
You will find these chips in many sales books at the convention.

The 1992 red inlay one is actually the 1991 chip restickered by the Shoe. Rudy spent several days doing it only to get a lot of grief from NV Gaming.

If I'm not mistaken all of the WPO chips were also dumped on the market. What year are they?

You are welcome to use any of the above factual information.