One still needs to plug RFTs after removing screw. So, the benefit apparently of an RFT is that you can still drive on it and thus no need to carry spare, patch kit, jack, wrench in car and one Is “safer” (I guess blow out proof). But, I have always been able to “catch” a screw in tire by monitoring tire pressure well before the modern TPMS provides a low tire pressure warning. There was only one time in 1979 when an RFT would have been a benefit: when I hit a pothole in our Accord, bent the rim, and lost all pressure in about 5 seconds at about 35-40 mph. I put the spare on in the rain with the light of a streetlight maybe 150 feet away.
I agree they are expensive to me as “insurance” for an unlikely event (one time need in over 55 years of driving/vehicle ownership): assume 40 tire replacements (conservative estimate) on 1,500,000 family driven miles, and an inflation adjusted cost of current cost difference of around $150 a set. So, that would be $6000 current value so I wouldn’t have had to change tire in rain in 1979.? So, the likelihood of it happening again for me might be 6.7 % chance per 100k miles driven. So, the “insurance” cost might be $400 per 100k miles - actually not very much given RFTs could save your life.! I forgot there’s likely a FE hit also which would to the cost.