I have never had a problem with OT threads on any of the forums especially when it relates to comparing different brands and models. This is your forum to use as you want to. If I thought OT threads were getting out of hand and taking over a forum then I might suggest they move to more appropriate forum but one thread about Roland arrangers by an ex-Technics owner really isn't a problem for me. It is very valid discussion to hear how a different keyboard compares to the Technics that it was changed for and why the change was made.