Why would any coffee house who sells Fair trade coffee also sell coffee that isn't fairly traded?

Submitted by worldgoods on October 2, 2007 - 6:25am.
Why would any coffee house who sells Fair trade coffee also sell coffee that isn't fairly traded?  If they've recognized 1) that there is such a thing as Fair Trade coffee, and 2) That the difference is so important to the people that grow the crop that they are making a living from, why would they only carry a fraction of Fair Trade coffee?  With over 50 brands and countless flavors, it seems like profit may be the only thing on coffee shop owners' minds?