Because Hasbro gives free Monopoly games for tournaments.
http://www.hasbro.com/monopoly/pl/pa...dn/default.cfm
We are pleased to be able to offer your group complimentary* MONOPOLYŽ games for use in your tournament, as well as three other games for prizes. In order for you to receive these games, please mail the completed Event Registration Form (include a street address, we cannot deliver to a P.O. Box) to Hasbro Games, 443 Shaker Road, East Longmeadow, MA 01028 or fax it to 413-526-4820.