Free shipping over $49, some deals also include MIR for additonal discounts. Others require the coupon be "clipped" before you add it to your cart.
Here are all of the other PSU’s that seem like a good buy…
EVGA SuperNOVA 1600 T2 1600W 80 Plus Titanium Modular Power Supply $180
https://www.bhphotovide
EVGA SuperNOVA 1600 P2 1600W 80 Plus Platinum Modular Power Supply $150
https://www.bhphotovide
EVGA SuperNOVA 550 G2 550W 80 Plus Gold Modular Power Supply $40.42 & $10 rebate
https://www.bhphotovide
EVGA SuperNOVA 550 G3 550W 80 Plus Gold Modular Power Supply $40.60 & $10 rebate
https://www.bhphotovide
EVGA 750 GQ 750W 80 Plus Gold Semi-Modular Power Supply $50.40
https://www.bhphotovide
EVGA SuperNOVA 1300 G2 1300W 80 Plus Gold Modular Power Supply $100 & $20 rebate
https://www.bhphotovide
EVGA SuperNOVA 650 G1+ 650W 80 Plus Gold Modular Power Supply $40 $ $10 rebate
https://www.bhphotovide