Disklavier

Greetings to all.

I have followed this group for along time and honestly when I read the 
posting about the new poll being gathered, I still to this day do not 
know what kind of Disklavier I own.  Sadly I bought it from the local 
dealer and then Yamaha took away their dealership because of customer 
complaints I was told. So, since 1996 I have just played the paino 
myself and only own about 15 disks that I have purchased. Never have 
understood most functions of the piano as it didnt comw with an owners 
manual either. Can someone answer what model I own? It was made in 
1996, its a grand, and the model number is DGHIBXG. The control unit 
says DKC100XG. I never know which model most of you are talking 
about...sorry to be so dumb, but would appreciate some help. One day I 
hope we have a new dealer in town that can help me. Also I have thought 
about selling it to buy a Mark IV, but also don't have a clue what mine 
is worth. Thanks, Ray Moore