Even with the $50 discount for full members these will probably never ROI at the price you are asking.
http://i.imgur.com/GRG41uX.pngThe calculation above assumes you pay nothing in electricity, the difficulty will never rise, you pay no additional costs for the Power Supply, cables, etc. and I included the $50 price cut in the initial cost. Even with all of those perfect mining conditions (which lets be honest will never happen for anybody) it would take a year to make your money back in LTC.
