White-label externals are gone. Best Buy cleared inventory last spring. The 14TB easystore days are over. I checked three retailers this week, nothing under $18/TB raw. At that price you might as well buy IronWolf retail and get the warranty.
The whole market got squeezed by Chia residual demand plus datacenter allocation. Even the 5400RPM SMR flood dried up. I used to budget 12 drives a year for cold storage, now I'm looking at $/GB on LTO-9 instead. Different attack vector, same problem: cost per bit matters when you're scrubbing 400Gbps floods and need 90-day packet retention.