Sadly, the the 8 TB Samsung QVO SSDs jumped pretty badly in price since the beginning of this year. (At least here in Germany.)
When I bought my drives a couple years ago they were around $400. I wish there were more options for 4-8 TB SSDs that went for capacity over performance. Honestly I would be happy with some larger lower-cost SSDs that ran at 100-200 MB/sec just for silent, low power capacity.
The only non-junk PCIe3 option that's even advertised here recently is the overpriced WD Red SN700.
Other than that it's just lemons and more power-hungry PCIe 4-5.
I still have better operational cost-performance from 5 year old drives compared to anything on the market today.
Those WD drives seem to have some real issues, at least with ZFS and btrfs. :(