One on sale on for $139 OBO. A lot more than 50 out there. I have one.
https://www.ebay.com/itm/Caesars-Entertainment-NCV-Casino-plaque-Las-Vegas-Nevada-HUGE-2004-Plaque/143846399962?hash=item217de9dfda:g:-zkAAOSwJSJfRsDb
() 
for $139 OBO. A lot more than 50 out there. I have one.