All of the $2.50 chips are slightly defective. The rest of the chips have a mirror like shiny surface on them but the $2.50's all look very flat - almost like they were soaked in nail polish remover for a few seconds. I don't think it is bad enough that the casino will ever notice much less have them replaced but you never know....

BTW - another note - they kept the old $2 chips and are using them as poker room drop chips. All other chips have a recall notice out on them.