Old people are expensive. If the people on Medicare were as healthy as the average 50-year-old, it would basically solve Medicare's long-term funding problem. If it cost, say, $100K every 10 years, it'd be worthwhile to give it to everyone for free.

Edit: checked numbers. There are about 40 million Americans 65 or older, and Medicare spends about $600 billion/year, for average annual spending of $15K each.

However, this technology would ostensibly over time get commoditized and available for everyone, like practically every other piece of technology so far.

No, ultimately we're looking for unlimited life for everyone. We will not sell anyone to the dark.

I don't think "regular" is the adjective you are looking for. By definition there will always be lives that are not regular, both positively and negatively.

One is easier than the other I am afraid.