The logic, which admittedly a stretch, is a Kubota is a LOT more money up front. If the tractor goes south that is much more of a loss to swallow.
I had two experiences with dealers. The guy I purchase from was a back yard resale person who took the tractor as partial trade on something else- Not a real dealer. The real dealer approached for parts and service have been a pretty mixed experience.
My back ground includes owning, old Case, Caterpillar and IHC along with new Ford/New Holland. All as a hobby/individual, build my own home, maintain some acreage. I mowed with an old Gravely walk behind for about 20 years. That worked out fine, repairs and all, but lot more physical effort. As I got older, decided I prefer to sit.
I am far from a great mechanic and make mistakes for sure. I get by. The biggest challenge I have faced is this Kubota HST drive. Even there, it has worked for 5 years. Not well, but good enough. I am 100% confident I could fix any reasonable issue with an older gear drive. Like a clutch, which is PIA but doable. I just retired, looking at a that POS Kubota, and thinking Chinese.
I got some great advise on this forum and maybe the Kubota has a chance. That includes starting with filter and screen up to a rather complex debug flow chart. No dealer provided any such help or advise. I never needed help with the old tractors.
I had a very simple issue with fuel on the Kubota. Sorry I forget a filter or loose connection to pump? Hours to access the part under the deck. I also looked at the fan and cleaned the rear axle. These parts were very difficult to access, require tedious sheet metal removal. The Chinese stuff, really looks simple. I see exact same issue with new cars and trucks. I been sitting on road side, no start - no clue, **** computer POed at me?