Not really. Purple strains by and large have been seen as a novelty item by many older growers. I like my weed to TASTE good, and only care about purple as a secondary bonus. The quality purples are out there, but look to clone-only strains for good examples.

If you run a purple strain just for the color, this will maximize the purple results:
-Low temps the last 3 weeks of flower. Run your air conditioner in the upper 60s day/upper 50s night. Only do this in the final flush period or lose significant yield.
-Run Purple Maxx/ snow storm on them
-Flush well to remove nitrogen reserves in the last 2 weeks of flower and let the purple show through