Case Axial Flow 240 series/250 series combines

[Heathland]

Can someone who has had dealings/know something about these combines,tell me what is the main difference between to two ranges.
I know the 250 series is the latest range,but too me they look very similar.
Had a quote for a new 250 series but could possibly look at a good used 240 series model.

 

[radu]

Case IH Announces New 250 Series Combines, Updates Axial-Flow 240 Models | AuctionTime Blog

Case IH will release three new Axial-Flow 250 Series combines for 2019. They replace the 7240, 8240, and 9240 models in the existing 240 Series.

www.auctiontime.com

according to this, the main difference is in automation, the 250s will alter their settings in order to obtain a better sample or a better throughput. some changes were made to the feeder house and some adjustable rotor vanes. i'm also trying to decide between a 7250 or a S770 from deere