store in eBay has WD My Book 3TB (Manufacturer Refurbished) + free shipping with the coupon PERFECTDAY
(apply at the checkout) for $46.74
You can save more (additional 15% off ) with a purchase of $150 or more from WD store.
Example: Add three WD My Book 3TB external drives to the cart. You will get additional 15% off at the checkout + apply coupon PERFECTDAY at the checkout to get 15% off again. Total will be $119.19 ($39.73 per hard drive)