B&H Photo Video has a “Deal Zone” for the Western Digital 16 TB Elements USB drive, for $299.99.
https://www.bhphotovideo.com/c/product/1604996-REG/wd_wdbwlg0160hbk_nesn_wd_elements_desktop_16tb.html
The deal ends in 6 hours and 47 minutes, from the time of this posting (17:12 EDT).
That is the lowest price I have seen in the last month or two, for a high capacity external drive.
$18.75 per TB.
If you choose to order more than one, be aware that the first two will be for the discounted price, and any additional units will be at their non-discounted price.
They do not make the above pricing issue obvious. You will see it only if you carefully check your shopping cart during check-out.
You can probably just place multiple orders, each consisting of no more than two units per order, to accomplish getting more than two at the discounted price.
The orders will probably go through on their site. Whether or not someone at the company will catch that and do anything is unknown. I would imagine that they would rather make the sales?
Cheers!