We can't even get interop between instant messaging platforms, and video calling platforms. Why would we anticipate that companies manufacturing $200,000+ pieces of equipment are going to work together when they have the option of lock-in?
I would never do that, unless I was actually renting the land. Some people do rent their land, and perhaps committing to such a contract could make sense to them.
The alternative is to simply buy a tractor and then hire someone that does many other things, like driving other tractors, cleaning them and do some repairs and maintenance. (If I could do that to my own AI-powered tractor, maybe then I would buy one). This is about who controls your business.
I believe there's future in modularity, but I also believe some kinds of equipment won't fall into the automation ratchet or the "evolve to AI or die" category.