Charles, the best round robin I've participated in - and I think it might have been yours - was in 2000 or so. It was nothing but obsolete $1 Nevada chips, and the participants were expected to replace a "C" chip with a "C" chip, an "E" chip with an "E" chip, etc., according to Chip Rack valuations. Everybody followed instructions, it went smoothly and most of the participants added some nice chips to their collection.