I am not interested in 6", and the guy who I'd ask is not on the computer, and far
away. It was nicer when all the train collectors were running through the bushes looking for plastic Lionel, and ignored Marx. "Them days is gone." A Marx worktrain
set (3/16) just went for $565!! on one auction site, and that with the #999 engine,
found everywhere. Not sure if 300,000 a year is the total Marx train production,
including 6", 7", and the 3/16, or just the 3/16, but there are a lot of #999's.