Hi Ilija!
Do not apologize for your enthusiam! From the looks of the pics at the demonstration in Dronten, I would be enthusiastic, too! Seems like they had all the keyboards there that anyone would want to check out. Even MIDI accordian. Thanks for sharing the link with us. And I'll bet the guy playing the keyboard with the xylophone sticks (mallets?) really "wowwed" the crowd!
Tom