Biz Journals – Thunder Valley Casino Resort launched a joint marketing relationship with MGM Resorts International where they now share rewards benefits. The reciprocal relationship means Thunder Valley customers with rewards programs can get discounts and special officers at MGM resorts in Las Vegas, and MGM rewards program customers can use their cards at Thunder Valley. Some of the shared member benefits include things such as personalized offers on hotel rooms, offers on dining and free casino play. “Thunder Valley is thrilled to be partnering with world-renowned MGM Resorts International and their prestigious Las Vegas properties to offer our Thunder…