So after doing some research this afternoon I have come to this conclusion about the JD garden tractors.
There in a League of there own, the 700 series anyway. Its absolutely not fair to compare them to any other garden tractor out there because they will last longer and feel superior to the competition. So there a garden tractor that is closer to a subcompact than it is a lawn mower. There higher than most garden tractor lines but they can't really compete with commercial mowers, there like a do it all kinda tractor, they mow well but not as fast as a commercial mower, they are work horses but aren't as capable as a compact but can out work anything other than a compact.
As far as there X3xx and x5xx series, I think those lines are great garden tractors but maybe not as great as there price suggests.
I can take a competition garden tractor and still get the work done, maybe the deere does better at ground engagement work and lasts longer but I don't feel it will outlast two of the competitions garden tractors because that's what the price difference is between them.
I have had this debate a lot lately and have been asking the question of: Can the Kawasaki in the deere last twice as long as the B&S or Kholar in the competitions? some even sport the FR Kawasaki engine.
I can find articles after article about how the Deere X series is superior but I can't find a hours rating on each tractor, nobody will say the JD X series anything is good for 1500 hours where the competition (cub, toro, husky, craftsman ext) is only good for 500-600 hours, that information simply doesn't exist.
I simply don't see enough data to suggest that any of the X series lines will out last 2 of the more reasonably priced competition.
I simply don't feel that a bit more comfortable ride, a slightly faster mowing speed, a slightly quieter mower is worth double the price.
I hope someone sometime can prove me wrong on this idea, until then I won't have a new JD mower in my garage, maybe a used one that's reasonable with lower hours.