KAWAI CA79 Digital Piano DEMO - ENGLISH

Great piano.

Schade, daß KAWAI keinen seriösen KUNDENSUPPORT hat! Auf Anfragen antworten die nicht einmal!

This piano is top of my list to replace my rental accoustic. However, the way that board with the Kawai logo is sitting skewed has me a bit worried. Don't want to drop 3 grand on an Ikea-quality flatpack cabinet.

What is major improvement over CA 78?
I am not Interested in more or extra features which I may not use?
Just Sound comparision compare to CA 78? It's worth to pay extra for improved sound ?
I may get good discount on discontinued model CA 78?
What's your Expert Advice as I am unable to compare both Piano side by Side..
Thank you..

hmm - and why not Chopin revolutionary or ballade or scherzo on one of these? Always the same blah blah which tells nothing about the piano possibilities