1913 Case 30-60 sold for a world record of $1,470,000 US dollars.

At the auction conducted by Aumann Auctions, it sold for the world record breaking price of $1,470,000 US dollars. 

This is not only the most expensive antique tractor ever sold, but it’s also the most expensive tractor ever sold.

Why? I don't know, the press release doesn't say

https://classictractorstv.com/worlds-most-expensive-tractor/