Yep, I get that. I was from there. My NAS is almost 10 years old now, and there are just above 60 TiB data on it, there is nothing I cannot really lose on it. I don't really have a reason to put a 20 bays NAS at home, so simple volumes turned out to be a better option. Repairing a RAID is no fun. I guess most of the ordinary home user like me should probably go with simple volumes. The cost and effort required for a RAID just doesn't justify the benefit for most home users.