Just a guess Archie.
PB had GD tokens?
GD would have had equipment to destroy tokens.
It was easier to send both chips and tokens to the same place.

I have been to several chip destructions in NV. Security, accounting and cage personel all 3 were there as witnesses.

When Elsinore took over, I was told the PB cash value chips were on a pallet in a room, under survielance.
The roulette chips were on a different pallet. We both know what happend to them.