About SCED Board of Directors.antique+casino+equipment HOTEL CASINO INTERNATIONAL INVESTORS The casino is Sumner County, as well as other new casinos in Oklahoma, are added to the mix in scenario 3. Overall, gaming revenues increase by $3 million, from $ million to $ million. Futures Unlimited recently won $ in the Kansas Star Casino 's Tree of Hope contest. PO Box Wellington, KS P: scedc@ co. kasinovegasx61c.xyz. Casino proposals in Sumner County were divided between Wellington, the largest town in the county, and Mulvane, which was 14 miles closer to the area's main population center, Wichita..