Also, they will check if they are earning a profit from those deals else they might use it on trial basis.
I dont think their rushing things for that maybe their watching bitcoin for now but maybe their doubting to use it because bitcoins price is unstable and there afraid to lose money if bitcoins price will go down and surely many business sector considering bitcoin and expirementing for now, some other are quitely doing some marketing research for bitcoin and surely by that if they can see the full potential for bitcoin they will accept it as soon as possible, considering they can get good market value for bitcoin because theres many user of it globally and let see for it in the future.