Gobe USA via Amazon is featuring as a Lightning Deal (expires 7:50 PM ET) the Gobe 77mm ND Stopper 2Peak ND Filter Kit (3, 6, 10-Stop) for only $67.44, when you check a 40%-off coupon box on the product page.
This is sold by Gobe USA and fulfilled by Amazon. Other sizes are also discounted. Compare with a regular price of $149.86 seen at other stores.