What is the approximate price of switching from 'lawn' tires to the newer hybrid ones? Sorry I don't know the correct terms. I'm just trying to find a ballpark if I find a tractor I like with the wrong tread for my use.
Lawn tires are normally called turfs. R4 are industrial. R1 are agricultural. R14 are the new hybrid tires.
I don't know the price, but I do know that there are two ways to do it - buy the new tires and put them on your old rims, or just buy new tires and rims together. And, surprisingly enough, apparently the rims and tires together are cheaper than the tires on their own, especially once you include fitment. But the trick is that the tires come from the parts department, the rims+tires are "whole goods" and come from the sales department. At least, that's what my time on OTT has taught me.