Well - I checked only one vendor. Southwest Mototire. They want $146.95/$167.95. Free shipping with 2 or more tires. No sales tax outside AZ.
CycleGear - $297.96 + sales tax (8-9% in AZ) = approximately $324
SWMoto - $314.90 total if not in AZ and they come right to your door. (No gas costs if you really want to be anal).
So for those outside Arizona, depending on your sales tax rate, if you buy a pair SWMoto looks to be a slightly better deal.
For me in AZ, CycleGear is $18 cheaper except for gas $$$ and the pain in the ass of going and getting them.