Landmark $5 mustard (with inlay). All 3 are buy-it-now listings, and appear overpriced for their condition, IMO. These may be "permanent" listings which pop-up as BIN additions when ebay offers free listings periodically.

Reading left to right, the chips in the pics are offered on ebay (BIN) at $600, $950 and $850 --

This is not an unusual number of this Landmark $5 to be available for sale. It's price-sensitive to condition.
I'm not looking to acquire one, but if I were, I'd hold out for one in new condition at a competitive price.