It's my impression that a number of the Lady Luck $1.oo "face" chips have been for sale recently.
A check @ ebay's completed auctions show 5 different chips sold, plus 1 that has been re-listed but unsold several times (and currently for sale).

Just seems that's more available for sale than usual? Have any been found recently, or perhaps "liberated" from deep in the Lady Luck vault, after Downtown Grand opened (if that's possible???)

Maybe a coincidence though??

Here's the chip I'm referring to (pic from Chip Guide):