You should be able to buy a 4 year old new tractor at a very large discount.
Kubota offers aged inventory pricing incentives to dealers to move aged equipment. Moreover, someone, probably the dealer in this case, is carrying the financing on this tractor.
Most likely, the dealer(s) that held this tractor did so in order to try to make additional profit prior to later model price increases but over-played their hand(s).
Inspect tires, paint and decals for UV damage.
Also be advised, that running engineering changes, improvements, etc., subsequent to the build date will not be incorporated into this unit.
SDT