On an SSD or HDD, it would occasionally be useful to have an eink display that indicates faults, wear, and thousands of hours operated.

Maybe also show the drive label and something about the partition table, although that requires inspecting the storage contents.

I wouldn't pay much more for that, though, and I don't know how many people would pay any premium at all.

There were a few USB drives which had a display that showed how full they were, but they weren't popular, likely quite fragile to filesystem implementation details, and AFAIK have mostly disappeared now.