I left the storage industry about 5 years ago, but at least as of then the big cloud providers were still buying lots of spinning rust and showed no signs of st

I left the storage industry about 5 years ago, but at least as of then the big cloud providers were still buying lots of spinning rust and showed no signs of stopping. These companies store a lot of long tail data which needs to be available but doesn't need super low latency access. It's still much more economical to store such data on disks than in flash.