Less common than the other denominations.

Hopefully you didn't pay much more than the $150 it will probably sell on eBay for.

I know when I found the Sans Souci card room chips there were a few very disappointed people who bought those for 10x what I was offering them for.

For me I take the good with the bad as I have made just as many great purchases as I have made ones that went down in value.

The thrill is still in the hunt.

Try and not let this get you down as value is a very relative thing and sometimes fluctuates widely.