On another note it looks like the manufacturers are focusing mostly on the enterprise sector. Makes sense given that SSDs these days are cheap enough and large enough for most non-enterprise users.
Consumers with middling desktops typically have a combination of an SSD and a 4-6TB drive for data storage.
I have three of the 10TB Seagate heliums and you don't have to be on the enterprise to use them. There are plenty of SAS controllers or you can get the SATA versions.
I suspect that the 12TB is a Hitachi design. Eventually that name will die out and everything will be branded WD.
I might get a couple of the 12TB WD drives, but more likely three of the Ironman 10TB Seagate is a better value for most purposes. At the time I bought the Enterprise, there was no Ironman version.
Of course we will have to see if Seagate makes a 12TB drive before the HAMR takes off.