Duffy Conley purchased all of his machines from Pasquale "Pat" Feruccio, a high ranking made member of Pittsburgh and longtime owner of Liberty Vending in Canton, OH. Feruccio was known as the video poker "expert" and he distributed the machines in NY, Ohio, PA, Kentucky, West Virginia and New Jersey.
http://www.peepsplace.com/showthread.php?t=36293clevelandmob.com/files/PD-Ferruccio-articles1991-93.doc
http://news.google.com/newspapers?nid=1144&dat=19910413&id=ASweAAAAIBAJ&sjid=7JYEAAAAIBAJ&pg=6909,5475204
Feruccio taught Conley the "business" of gambling which is why Conley ran such a professional gambling business. Feruccio was also the liason between the Pittsburgh & Cleveland families and played an instrumental role in the early 1980's of brokering the peace between the two families over control of Youngstown/Wareen, OH rackets. He died in 2006.