Still not as cheap as the 4tb per tb price...but in case you were looking...
WD Red WD60EFRX 6TB 64MB Cache SATA 6.0Gb/s 3.5" NAS Hard Drive Bare Drive - Newegg.com
$259.99 with code "ESCWHHE22"
WD Red WD60EFRX 6TB 64MB Cache SATA 6.0Gb/s 3.5" NAS Hard Drive Bare Drive - Newegg.com
$259.99 with code "ESCWHHE22"