Allan- maybe consider a different symbol for live chips that are not rare, but their high denominations (500, 100) etc) put them in a category of their own since most of us can't afford them at the cage...maybe '$' instead of "x"???
And, going back to earlier...
...rare or scarce....
OR "the supply might be controlled"
those are the ones we have to watch out for
such as:
a) my dumb pai gow chip
b) that stupid tyson ltd 25 (anyone wanna buy it?)
and...
c)the dorky Xmas '02 Sunset Station chip (no names, please)
peace
MP