Richard,
Can't speak for others but I always check your listings.
Unfortunately, my collecting interests aren't too broad and I don't find any chips I need.

As far as trademaker goes, I've had some good luck with trading with some of our members.
I'm very pleased with that part of the ChipGuide.
Also, I didn't notice your traders on the ChipGuide when I checked. I do see your collection, though.

Good luck.