Nevada Gold & Casinos Inc. (UWN), whose management decided months ago to shed all non-gaming assets so it could concentrate on its gaming activities, has developed into the "king" of the mini-casinos. On Monday, the company announced it had acquired the Red Dragon mini-casino in Mountlake Terrace, Wash., for $1.25 million. The purchase means Nevada Gold & Casinos Inc. will own the only two mini-casinos in Mountlake Terrace and will count some 10 mini-casinos in its inventory. The company is based in Houston, Texas. Shares in the company are lightly-traded. At closing Monday, the shares were listed at $1.27 each.