One good example is the Caesar's (Las Vegas) $1 chip that many eBay sellers are calling obsolete. Yes, Caesar's may be using the $1 metal tokens at their table games but I was able to buy the so-called obsolete $1 chips at the cage during both Vegas visits in May and October of this year. Maybe soon-to-be-obsolete may be a better description. Just wanted to put my two cents in... (Come to think of it, they say pennies are soon-to-be-obsolete.)