What started as a four-page flier advertising “new parts for old tractors” has grown into a 616-page, phone book-sized catalog of more than 5,000 parts.

"The tractors here are all older than 25 years old. Most are 50 to 70 years old, but we even have a couple of 100-year-old tractors this year." Nolan said the show is a fundraiser for the museum.

Specifically, tractors, where older and lower-tech is better in the eyes of many Midwestern farmers. ... They’ve stood the test of time, well built, easy to fix, and it’s easy to get parts. ...

So as the Minneapolis Star-Tribune reports, more farmers are taking a page out of the car enthusiast handbook and seeking out well-maintained, gently-used tractors from the 1970s and '80s.

He keeps parts lists and paint color codes on each tractor model and knows every rare part on each one. “These are old tractors, some parts are still available and some aren’t”, he explained.