If the cost difference is thst high you sre better off putting in redline si1 or other additive in maintenence dose every fillup or everyother fillup.
As for me I ran about 4tanks of new nitro through. I think they just added some ucl as I can feel my car runs smoother.
However I get an even more pronouced improvement feeling if i were to do my own additives with si1,even at lower rates and alternating dosing. 1 bottle over 100gallons is about a 10cent/gallon cost
So if the price increase for nitro is very high, you can diy with redline, and the redline option gives you more benefit at a potentially lower cost..
So I will buy if it's the same or within say 5 cents of chevron or other top tier, otherwise I'll skip and not pay a high premium. Convenience though trumps all other optimization, im not goung to have any of this run my life
Caveat, if you notice zero difference in your car perhaps there is no benefit for your car, but that doesnt mean that there are zero benefit for every car. So please dont post "all additives and fuel grades are a waste of money, run the cheapest regular"