Too bad about your local dealer. Fortunately there are plenty of dealers around me of all colors. The JD dealers here are a cut above the others. But our Kabota, Case and NH dealers are pretty good. The Kabota dealer used to be second rate but it was sold and the new owners have really turned it around. My JD salesman restores old tractors, uses email and is generally a nice guy.
I found a JD 110 TLB for a friend. It was in another state but a screaming good deal. It turned out he could get it delivered to him for cheaper than what the local dealer was offering (by quite a bit). He told the local dealer and he matched the price.
So my guess is that this is not so black and white as people are thinking.
As to the JD lawn tractor/mowers; The ones they sell in Lowes and Home Depot were created just for that purpose, to be cheap enough for the HI stores. The local dealerships don't really like to sell them because they don't feel they are good enough. Even the zero turns. They still stock some of them, but with the lowered quality and the rock bottom margin, they aren't really motived to move them.
I love my LX280. It works wonderfully and drives great. I even cut a pasture once when the grass was taller than it was, and it has a mulching deck on it!