Edit: And they're gone, like I said below there were only 6 left when I posted, if you got one grats.
https://www.walmart.com/ip/WD-20TB-Elements-Desktop-External-Hard-Drive-WDBWLG0200HBK-NESN/1049105244?classType=VARIANT&from=%2Fsearch
This may be fairly normal price or a repost, I don't know. I had an 8GB drive fail and as I've been replacing drives I've swapped them out for the 20TB WD shucked drives, I had an extra one saved for a hard drive failure, but now I need one for the shelf.
I haven't seen a sale since Black Friday, so I thought I was screwed or going to end up buying used on ebay or something (I'm anti-exos due to their failure rates at backblaze, warranted or not), and then I was reading another old post here on this subreddit about walmart having a different part number to make it hard to compare prices, and lo and behold I go check and it's on sale, so I grabbed a couple for stock.
I've seen them for $250, but this was close enough for me. Says there's only 6 left, so ymmv.