How about $243.50 for the set of 3 chips. See recently concluded auction:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=369299040

It's interesting that when these chips auction individually, the prices realized are inverse to their value:
$1 chip goes for highest value; $25 chip is lowest of the three. No doubt due to lots more $1 collectors than $5 collectors.