I live in Indian Country -- Oklahoma -- and as such, have more than my fair share of casinos around. Knowing that the casinos sell their "gently used" playing cards for around 25-50 cents a deck, I went into the casino this morning, money in hand, to buy several decks of cards for my guys. The lady at the Players Club desk asked me why I wanted so many decks of cards (I had asked for 40). When I told her, she promptly picked up the phone, called her manager and told the manager that I was needing decks of cards to send overseas. They gave me 100+ decks! God Bless them!!
So, if you live near a casino, give it a try!