What I dont understand is why farmers are still being brand loyal to companies like John Deere. There are quality tractor brands from Italy, Germany, Finland, J

What I dont understand is why farmers are still being brand loyal to companies like John Deere. There are quality tractor brands from Italy, Germany, Finland, Japan and Korea etc. Would jumping to these brands be a easy fix or is there an issue with dealer networks and part there? Seems to me while getting right to repair rules are still important, farmers of an area should be setting up coops for parts and swapping brands. Is that over-simplifying things?