"What happened to all the chips inside the Dunes prior to the closure? Were all of these chips sold or destroyed? Thanks, GW"

They were all sold to Jerry Wahl.
There was literaly tons UNC 15 piece Sets
He controlled them for several years. The entire set started out at about $1,800. Price went up and down from $900 to $1,500. Jerry finally wholesaled them out. There are plenty. Jerry gave me a set. We got along pretty good.
Jerry is dead.

Last month a non-chipper from NY read an article I wrote in BJ Confidential and called me. He had 36 sets and offered them to me for $100 per set -$1 Up to the S25,000 including the Faro chip and $1 poker room chip. I directed him to a dealer, not sure if the dealer bought them or not.

Be careful with the Dunes chips.