http://greatergreaterwashington.org/post/12220/is-the-rent-too-damn-high-for-some-dc-businesses/
High rents directly impact businesses by raising the average total cost. Barista wages and coffee prices likely don't waver much from city to city, but the amount a coffee shop pays to its landlord every month can and does vary greatly.
The result is that coffee shops in high-rent neighborhoods, for example, face a challenge that coffee shops in low-rent cities and neighborhoods don't: They have to pay handsomely for the privilege of simply being able to open their doors.
and for data freaks (scroll down a bit)
http://www.bls.gov/oes/current/oes353022.htm#st




