Smitty, I'm not that up on the Kubotas to know the difference between the 2. I assume you are getting more HP with the 2400 which could be a consideration if you are doing any PTO work. Is the transmission built stronger on one over the other? I would look at overall condition and service history as a first consideration. Although Kubotas are great tractors and should last many thousands of hours if properly maintained and not abused I have seen them with low hours and engine problems due to no oil changes being done for many years.
Good advice, Brian.
The only difference between the two is the hp. Same WB, same transmission--hydrostatic in this case though the B2100 also had a gear tranny available. They are at a Kubota dealer--the 2400 was owned by an elderly man with some property and trees, etc. apparently--he used the grapple to clear around his house, etc. It was maintained at the dealership, so I'm assuming it is in good condition.
Reading the info. on Tractordata.com, it doesn't say if the hydro has two ranges or not, so that may be a concern. My use of it would primarily be the front end loader and a rear scraper. The cab on the B2400 is heated, which would be nice for our winters here.
Still researching them--trying to find out if there are any systemic problems the series had--weaknesses in steering, engines, transmission, etc. Also want to know if the hydraulics and tranny are electronically-controlled. that can add up to big $$$$ if something goes wrong.