You can buy used multiples of 6TB SAS on ebay. I've seen 4x6TB/£450.
If I were to build a home NAS - I'd probably use these. It's harder, by the way - to find proper cheaper SATA drives, on the other hand.
If I were to build a home NAS - I'd probably use these. It's harder, by the way - to find proper cheaper SATA drives, on the other hand.