these little boxes are perfect for my home
My use case is a backup server for my macs and cold storage for movies.
6x2Tb drives will give me a 9Tb raid-5 for $809 ($100 each for the drives, $209 for the nas).
Very quiet so I can have it in my living room plugged into my TV. < 10W power.
I have no room for a big noisy server.
Storing backups and movies on NVMe ssds is just a waste of money.
While I get your point about size, I'd not use RAID-5 for my personal homelab. I'd also say that 6x2TB drives are not the optimal solution for low power consumption. You're also missing out server quality BIOS, Design/Stability/x64 and remote management. However, not bad.
While my Server is quite big compared to a "mini" device, it's silent. No CPU Fan only 120mm case fans spinning around 500rpm, maybe 900rpm on load - hardly noticable. I've also a completely passive backup solution with a Streacom FC5, but I don't really trust it for the chipsets, so I also installed a low rpm 120mm fan.
How did you fit 6 drives in a "mini" case? Using Asus Flashstor or beelink?