By deal do you mean why did I sell it, or what kind of deal did I get on the new one?
I sold the 3510i because I wanted something more muscular, and larger framed for my 6'4" 260# self.
I fit fine on the 3510, but the extra 6" of wheelbase would be nice for sure. I also split time between brush-hogging and moving snow depending on what time of year it is, and want to spin a bigger hog.
The 300 hours I got out of it were awesome. The only thing I replaced in 5 years was one spring (of 2) for the clutch pedal return. Other than that, routine maintenance was it.
My .02 as always
Lunk