Any system that works we should use, and system this is too slow to build or is unperfectable for the marketplace should remain as a lab curiosity. One thing that jacks up price is imminent danger. For smokers, air pollution was a big, unknown, threat to health, that never got factored in, because the was in flavor country.
"I'd walk a mile for a Camel." Like a coal miner getting black lung, when, if you didn't like smoking a miner lived a lot longer.
So, yeah to solar be it rooftop or Agrovolttics. Batteries are roaring along technically. This is for purely, practical, long term human survival, and not because Gaia approves! The MSR thing has always been tempting for me because 1000's of years of solid electricity. Having said that, like fusion, its got to also creep out of the lab. I am very big with wind power at sea, which will start appearing along the US East Coast soon, as it has already proven a success north of Scotland. A possible dark horse live save would be the development of deep, hot rock, geothermal, now made accessible by technology.
We'd be Quazy not to twy it! However, I must ask, does it cause earthquakes?