And the band played on!
With 32 TB SSDs already shipping, HAMR looks to be a sideshow. Heck, we'll get 100 TB 3.5 inch SSDs by Xmas. The best we can hope for with HAMR is very slow IO and 10X the number of racks to hold a given capacity.
Yes, SSD will cost more per terabyte, but that 10X factor in appliance count offsets much of that!