I've been meaning to get more components for a diy NAS since atleast the last year and just been pushing it lazily. I'm literally kicking myself now when I actually started looking up deals for this black friday.
Same here, I was waiting for DDR5 to come down in prices to upgrade from 32 -> 128gb. Could have done it for 200-300€ a few weeks ago, now I'm just sad.
Depending on how many disks you need, buying old PCs on eBay is the way to go because there are still some Xeon E3 ECC models available cheap ($100) with plenty of RAM (16GB) and four SATA ports for a NAS.
Best price for the same one now: 689,55 €