I must respectfully disagree. There are some areas and jobs where technology does not have the longevity (such as a long power outage or area where there IS no power). In such cases then an old fashioned manual typewriter is the way to go.
While the niche market is small, I wouldn't say it is completely extinct. Personally I wouldn't mind having a new manual typewriter for such events.
Plus it can't be hacked or leave a track on the internet!