In S01E01 of Altered Carbon when Takeshi first speaks with Bancroft, it's explained that a full copy/backup of a person's DHF (stack) is extremely expensive; only for the super rich.
BANCROFT: Have you ever heard of full-spectrum DHF remote storage backup?
TAKESHI: Yeah. Just never met anyone filthy rich enough to afford it.
In such a futuristic setting where medical and technological feats are seemingly easy to accomplish, what's the reasoning behind this?