In my neck of the woods the 6-23 is a good seller. It looks the part and has the right visual impact in areas such as kicthens and bathrooms. They ran out of high quality panels in this size, but they still have the set in stock.
A neat feature of the 6-23 is the ability to use the built-in radio "the wrong way" over the ML network: A 6-23 in the kitchen and a BeoVision 7 in the mainroom will give the owner both CD and radio in both rooms. This meant that a lot of customers could drop a separate audio system, bringing the price of the 6-23 into a new light.
Also, I preferred the slim black frame surrounding the picture on the 6-23 compared to the over-sized black frame on the 6-26.
Sad to see such a brilliant design in this size go.
Roger