Actually price has nothing to do with the fact the pros don't use a JD because if someone is serious about mowing professionally price really doesn't matter that much, but I'm like everyone else that believes the JD isn't worth what there asking. The lack of dealers does have a lot to do with though, in the past few years I've seen at least 3 different JD dealers here in this area close there doors because they could make a go of it. The reality is you can buy a pretty serious commercial ZTR from Toro, Exmark or Hustler and have more mower for less money than you can from JD that's why the pros don't use JD.
Sorry, but that is not true at all. You can't make a blanket statement like that. It all depends on what part of the country you live in as to whether or not "pros" use JD, or whether or not JD is more expensive. Go to lawnsite and ask or read. Lots of pros use them. I use one. Does that mean I am not a pro? There is no better cutting deck for any part of the country than the 7 Iron Pro deck (the MOD is another story IME). Rain or shine, long or short, weedy, or lush. Doesn't matter. The deck cuts clean, and doesn't clump. The Velocity + is an excellent deck, but leaves longer clippings behind than the 7 Iron. The Exmark needs dry grass or it clumps like mad. The VX4 is having all sorts of issues on 60" decked machines. As far as the stamped deck issue, that's a bunch of BS. I guarantee you if more of the mower manu's could actually afford the enormous press it takes to make a stamped deck out of a single sheet of 7 gauge steel, they do it in a heartbeat since it is stronger and faster to produce once you have the expensive press and dies it takes to do it. They can't, so they knock it to sell their welded decks. Think about it....thousands of years ago the Romans were smart enough to now that a radius/arch was a lot stronger than a square corner. Are you going to try to tell me that that has all changed in the time since?
Here, Exmark rules as far as numbers. Why? Because back when lawn care was nowhere near as common as it is now, now that the economy is crap and everyone and his brother has a mower and trailer here (there are more LCO's here than you could ever believe unless you came here and saw them for yourself), Exmark and Toro were about it for commercial mowers here. If you wanted to be considered a "pro" you had to have an Exmark since that's what the other pros (who hadn't had much choice here previously) always used. It also happens that Exmarks is far more expensive than JD, Scag, Hustler, gravely etc etc here, and I mean by far.
As far as JD lawn, or L&G tractors goes- no one should judge them based on the entry level machines sold at Lowe's, HD, or dealers. They were designed to compete with cheapy machines like MTD/AYP products. Move into the 500 series like the OP bought, and it's a totally different world.
In ten years, how many MTD/AYP machines will be worth anything? Not very many, if any. The JD 500 and up series? Plenty as long as they were taken care of.
Most guys who claim that you are just paying for the paint on aJD are either jealous because they can't afford one themselves, or too cheap to spring for one.