I have two of the $5 chip (one in my collection) and one dupe. I picked them up back in 1999 and the main reason I've not sold the duplicate is I was never sure what would be a fair price for it. It might be a good candidate for It wouldn't suprise me if it might fetch $50 or more there. By the way, the $3 chip that came out at the same time is much more common.