You definitely cannot get as good of a picture in that size range with any other solution under $1000.
I'm not sure how much exposure you've had to other monitors, but that's quite a definitive statement you made there.
The specs on the D9200 lead me to believe that it is basically a multi-frequency version of a standard-res arcade monitor. Picture quality at equal resolutions should be pretty much the same. And if you are driving it with an ArcadeVGA card, the resolutions you would probably be most interested in will be common to the standard res monitor.
Now if vector graphics are your bag, and you have the D9200 utility for non-interlaced operation at 800x600, then I might agree with you.....but only at that size. Real PC monitors do vector MUCH better, even if they do top out at 21".
The D9200 has one major thing going for it, and that's versatility. But stating "You definitely cannot get as good of a picture in that size range with any other solution under $1000." goes well beyond "stretching it".
BTW, asking an untrained person to do a chassis swap where lethal voltages can be present is not my idea of "being treated well".
Good customer service is what I experienced with Xerox once. They cross shipped photocopiers *twice*, with virtually next day delivery to remedy a warranty problem I had. They picked up all shipping charges, which meant they lost money. Companies willing to lose money to protect their customers (and their reputation) have good customer service.
But if you are happy, that's cool

. I can tell you that I wouldn't be.
RandyT