Movies which are built from made up scripts based on little insight are easy to spot because generally they aren't very compelling.
Thank you for succinctly explaining episodes I, II, and III.
... deduped them to 18% of their original size
He's claiming 82% dedup savings with this. That's roughly five times greater than what you credit.
Even with the price overhead, I'd still consider a solution like this because I can replicate all my data on one storage appliance more easily than implementing replication across X commodity servers. Yes, I like to spend money to make my life easier.
UNIX enhancements aren't.