Archie, if one needs to obtain something UNDETECTED, something is wrong about it. Don explains a way to possibly beat security (why would security want to know what was happening?) concerning counting chips at a cash-in procedure. It involves leaving the table before the person doing his or her job has time to do their job.
...I guess that someone who advocates taking whole stacks of roulettes as being "preserving history", and has "preserved" history in such a manner could try to, and actually has, justified this practice as okay.
I don't own single roulette chip. I'd love to have the Antique Car set, but the only way that I'd EVER have or buy it would be with the consent of the pit boss or casino.
I think it's too late for you to understand that Archie.

Just my opinion.
Bob