ebeb ... if you have finish lawns that you like the looks of, and don't have obstacles to mow closely around (as in low trees, decks, intrusions, pavers, siding, small beds, etc.) the 4710, in my opinion is far too large.
Now if you have 4 or more acres of long clear runs of lush grasses leading from a mcmansion, then the 4710 might make sense. This machine would handle those 9 blade bat wing rear finish mowers on a golf course quite nicely. If that's what your lookin to do, then have at it.
In my opinion, the 4710 crosses the line between a CUT and an UT (as in utility tractor). People are using these with mini-balers for hay making ...
... the 4210 is a CUT, almost a small one at that ...
Read the specs ... look at their HP (both engine and PTO) tire sizes and weights and you'll will be able to visualize to some extent the difference.... again ... another analogy: think of a Mazda Miata and a Corvette ...
(I'm gonna need to dodge the bullets here!) /forums/images/graemlins/blush.gif