Ignoring (if possible) subjective likes such as bright/ brassy/ flat and 80/20vsPhosBronze etc.
I can buy Martins and EB and similar acoustic strings in the £6 - 8 range
i can by Martins and Elixirs and similar which are coated in the say £15 range
what I am paying for there is the coating technology which is based on increasing the life of the strings; so be it and all well and good if you like / need that.
but, are there out there in the marketplace Higher Quality strings ? Perhaps that are made out of a higher quality or purity base metal perhaps that just sounds better. Or is it all marketing and taste and preference and the actual strings are much of a muchness.
if you bought the most highest quality hand made and crafted acoustic guitar, would it come with “off the shelf” stings ?