Look at the actual manufacturers, realise that noone is producing simple tractors any more, where are they going to come from?
As a single example, there's nothing that Belarus make that I'd want to use for buckraking a heap of any real size. They don't have a JCB 435S equivalent, or a heavier Fendt or Claas.
They're great tools, but you're not going to get the hectares per hour of sowing or harvest or the movement of tonnage of the modern competitors.
The new tractors contain computers and need tools. Manufacturers refuse to sell tools and placed equivalent of DRM on computers to stop you repairing your tractor on purpose. They make their supplirs sign contracts where the supplier is not allowed to sell parts to anyone else. None of these issues are due to complexity, all of them about you loose property rights over your possessions and turning physical goods into a subscribtion model
And imagine you have a warranty dispute or similar
But no manufacturer wants to do it. And no venture capital wants to finance such thing. Because.. I guess.. these evil capitalists just don't want to make more money.
Is that the argument? That capitalists don't want to make more money?
So no, the argument isn't that they don't want to make money. The argument is that they do, and realize that tacitly colluding will make them more money than undercutting each-other.
Because yeah, that's what you do when you recoup the rest of the cost in the subscription/maintenance.
It's the same model that game consoles use to keep the hardware costs low. They make it up in the game and peripheral licensing fees.
If JD dropped the subscriptions, but instead charged full price for the tractors, people would just scream about the prices instead.
I actually agree that farmers should legally be able to repair their own tractors, or have anyone else do it. But gaining that "right" back wouldn't actually fix their complaints, just shift them.