Henni, sorry you're having problems with Ketron. I really like their products, and have 4 of their pieces of equipment. My problem is with the way they do business, rather than the design of their keyboards. I have been offered a keyboard If I send a check made out to an individual, not the dealer. Another time, I was asked to meet an employee after show hours to complete a deal, ...But don't tell anyone...".
That's totally unacceptable in the US.
Be well, and happy 2018!
At one point, I was very interested in an SD7. I was told, pay $3,800 up front and wait until one is available...not sure when...
Maybe some company, with actual marketing skills, should buy Ketron?