"If an A.C. casino sends thousands and thousands of chips to destruction (even LE's like Taj Mahal did not too long ago that Mike Custodio reported on at the time) would you not say that those chips are now "obsolete"?"

I'm betting, I have one of each chip you are talking about.
Question: Can I bring my one chip of each in and get it cashed?
If your answer is "YES", then I do not consider them obsolete.