Since the start of the year gambling revenues at Detroit's three casinos has dropped. According to the Gambling Control Board when all are averaged together in the first three months earnings are down 5.9%.

MGM Grand Casino in Detroit - Photo by Getty Images

Analysts say there are a number of possible reasons. One is certainly the terrible winter. All the snow and ice had quite an impact on a wide range entertainment venues. More simply preferred to stay home rather than venture outdoors. Many figured it best to limit their travel to work, the grocery store and for absolute emergencies. They also point to more casinos now open in nearby Ohio. This added competition is giving casino goers more options.

It's being reported Greektown was down 8.2%, MotorCity 6.2% and MGM Grand 4.3%.