I know little about farming equipment, but this seems relevant enough for just about any kind of transportation, or all production machines for the matter.

This article gives some insight on what’s happening, after sale, with most new farming machines, not only John Deere’s.

In my opinion, if you buy something that you know how to maintain then you should be able to do so, the manufacturer shouldn’t have a post-sales maintenance monopoly. In this case, adding insult to injury, they are forcing people to use their service without considering their operation’s context, doesn’t matter if there are better, cheaper, closer options to the company’s service network.