"I don't believe any of these chips were ever put on the table for play."

Of course they were never put on the table. They might get scratched. If they are scratched collectors won't pay $5 for a $1.29 chip.

"and yes they were very friendly and nice when I picked them up last December."

I'd be very friendly and nice too, if I could sell something with a %300 profit margin. :-)