Here is a good site for EC info. There is a good machine location listing by state/city. I picked up over fifty pennies during the convention trip from Circus Circus, Riviera, Golden Nugget, Fitz, Primm Valley, Buffalo Bill's, Sahara and a couple others. I got pennies from MGM (Rain Forest), M&M, a souvenir shop (next to MGM) and others on previous trips. Getting pennies for my grandchildren is a must stop on any trip now. They have over 300 different pennies.