Balers
John Deere balers require a lot of maintenance, as does any baler. They have good features, like extra wide pickup. the net wrap on the older ones (round balers, obviously) was not very reliable. John Deere made a few. Here is a list of some, but probably not all: 435, 447, 547, 457, 557, 467, & 466. They have some service issues, though it is pretty good.