Could be a hard question for some. I don't really collect individual chips, so my viewpoint is the one chip that made me want to buy more. Mine would be the BCC Desert Palms 5 dollar chip from the Chip Room. It was September 2006 and when I held it in my hand, and looked at the beautiful colors, I was hooked and wanted to find more beautiful chips to play with. Don't recall who chose the colors on that one, some kind of contest Jim had. The Blood Red base is intense, with the Arc Yellow and Royal Red accents. It really draws the eyes in. I'm still looking for more...........