Once I have purchased a surround album, it is unlikely I will ever hear the stereo unless I am in the car.
If I am making a buying decision then I will demo tracks in stereo - not because I want to hear the stereo, but because I do not yet have access to the surround mix. Often I wish I COULD demo the surround before the final buy decision. Sometimes I can accomplish this at a friends' house. But usually YouTube and the commentary in the QQ polls are enough information for my decision.
If I am making a buying decision then I will demo tracks in stereo - not because I want to hear the stereo, but because I do not yet have access to the surround mix. Often I wish I COULD demo the surround before the final buy decision. Sometimes I can accomplish this at a friends' house. But usually YouTube and the commentary in the QQ polls are enough information for my decision.