A recent article in LAM found that 59% of 1st professional degree programs in LA required their students to become proficient in GIS. They also found that 52% required students to own their own computers. Not sure how accurate those numbers are, but I concede that it is a difficult thing to measure.
Smith, R. 2012. “GIS skills wanted,” Landscape Architecture 102: 3 (March) 44-50.