I appreciate all the responses very much.
Today was the day that the Kubota dealer said he would get me in. No call. I have no problem understanding that a dealer may not be able to predict how busy they will be, the need to prioritize other tractors over mine etc. I do have a huge problem with not being kept informed. It's just courtesy.
An improvement in the story is as follows:
I have been pondering what I would have done had I bought again. I think I might have sprung for a Grand L, gotten remotes and hydraulic top link installed. I decided to call a third dealer to get an idea of whether trading in was worth thinking of for me. I was very upfront that in all likelyhood it would not be worthwhile for me to trade in at this point but if they were willing to spend the time going through the numbers with me, I would consider it.
They worked me some great numbers on a new Grand L... unfortunately, I would just loose too much on the trade. Realistically I really like my tractor and I should hang on to it.
The good thing was that I was very very happy with the dealer. I dealt with the owner on the sales front. He did all the things that the dealer I bought from should have - went through the details of the choices, suggested loading tires and getting a block heater, suggested getting the LA723 loader... basic stuff that you soule expect someone informed of their product to do.
As a result I have found myself a new dealer for service. The owner's younger brother runs the service department. Unfortunately he's not going to be able to pick it up for a week and a half but I imagine that my tractor won't self destruct as I have 51 hours on it and my put on another 5 by then.