A couple other concrete disadvantages that paver installers might want to touch on with their potential clients are: 1. Stamped concrete is commonly dyed by hand casting pigments. This powder becomes airborne and adheres to everything. One serious problem area for this pigment is the caulking around windows and doors. I know of one contractor that had to completely reside and caulk an entire building because of this. (Not me, thank God!) 2. Concrete contractors doing stamped commonly track or slop concrete onto other existing surfaces leaving eye sore areas for the home owners.
An After thought- Concrete will pit if you put salt on it in the winter, do pavers suffer to some extent as well?
Stamped or patterned concrete is going from $8-$14 a sqft here.

Tim