I believe this is the cheapest 1TB M.2 SATA so far. Note that it's the first gen WD Blue using TLC NAND, and has been replaced with second gen using 3D NAND. However with SATA there's not much difference anyway, only slightly slower write speed on the first gen.
Original PHENOM 10% off Sitewide on eBay deal post, thanks to TA.
only buy it if u desperately need it.
NAND price is crashing. SSD will be cheaper