I'm sure you will be happy with your purchase--proper care and feeding is key to any long term success. I'm sure JD will make right anything major that goes wrong.
That said, just have to say I think JD has become a rotten company. Had the displeasure of contacting them after getting ripped-off by a dealer on lawnmower service. Will spare the details, but suffice to say they do stand by their dealers--literally, no matter how absurd! Did some digging, and found MANY unhappy campers in various web posts. Just bought a Kubota (2710), and through a similar search I found 1 dissatisfied owner (granted smaller sample size resulted in my search). This individual re-posted saying Kubota sent a rep. out, picked up his tractor and dropped of a new one--more recent model for no incremental cost. While without the details, hard to say what exactly transpired, there seems to be a clear, major difference in the company's approach. I feel Kubota takes a much longer term perspective--they are growing a brand from a consumer product perspective. Whereas JD is milking a good old one.
JD also outsources much of their work (all under 40Hp I hear), and many parts on all others. They are now into badging low end lawnmowers/lawn tractors to be cost competitive with Sears, etc.. Takes a significant shift in mindset to change from 'last froever, solid machines' (like my '67 JD110 mower that will never die), to throw away specials. Kubota as I understand does ALL their engineering and manufacturing--there is a difference in ability to control quality and properly manage trade-offs.. Even noticed a clear difference in dealer attitudes (interacted with 4 or 5 of each over the years, the Kubota dealers all recently)--the Kubota folks seem to try harder. My guess is more time spent on training and image enancement, vs. how to push the product (have seen JD manuals on this). The Kubota manuals give a glimpse of the possible reason--more wholistic view of the world and their place in it. Has to show-up to some extent in the product. JD, via the annual report, appears more market share and segment growth focused, profitability etc..
In my opinion JD has just become a typical 21st century company running a previously good brand name into the dirt. But as they say, opinions are like.......time will tell.
That said, I think you're purchase is reasonably safe--will likely take awhile for the throw away mentality to perculate through their entire product line.