If you’re not a member of Best Buy Plus / Total, you can add a Plus membership to the cart at the same time for $49.99 and the discount will apply.
Limit 5 for each order
Membership activates instantly so, if you need more, you can go back and order more at $119.99 right away.
That exact deal is gone, but the 18 TB is now $200 for Plus / Total members. Not as good as $120, but still a stellar $/TB.
Debating getting a few to transfer one of my JBOD volumes to a RAID.