Western Digital announces 26TB hard drives and 15TB server SSDs
arstechnica.com
arstechnica.com
Today a terabyte costs $99 and fits in my pocket.
I have a large collection of 5TB drives, and it's honestly already at the point where instead of going larger, I'd simply get more drives.
Peaking at ~200MB/s writes means that making practical use of this much data is getting more and more specific (eg: archival). It can make more sense to build an array of smaller drives to get the same capacity but actually useful performance.