Some farm, typically agriculture. Your average cattle, sheep, or other livestock farmer will not be running a 400+ HP tractor in most cases. 50-110 hp is common for general property use such as clearing, slashing, loading, material moving. In these cases a Mahondra, or any number of others is ideal. You can get John Deere in the same size, but would be mad to do so with the repairability issues and higher cost.
> Your average cattle, sheep, or other livestock farmer
is a very different person in different countries. The US has large scale agriculture and use large scale equipment.
Those large scale farms aren't the ones who have a problem with John Deere or repairability. Corporate will handle that.
The most popular tractor on American farms right now is the John Deere 5075E, which has between 73 and 75HP.