You can get an antique tractor relatively cheap. A model 60 pulls in maybe 5k, restored. There are some models that are rare and cost bigger dollars but the most expensive is one of 4 made and it sold for 25,000
Or a UDLX. All are spoken for and go for big bucks. The Hemi Cuda of Minneapolis Moline.
JD was built in town and most Olivers were made in Charles City just 45 min. north. There was a lot of implements made around here. Even Dart trucks and Maytag cars.