My word Sergey that was a highly reflective almost philosophical answer to the contents of this thread. Thank you, I will reply in detail in a personal email.

Let it be known once more that the premise of this thread was a simple one:
Would/ should you if you had a little money to spare ( 200 dollars), while in the possession of one or more (arranger) keyboards but nothing from the Yamaha brand, consider the purchase of the PSR373 or similar keyboard , like I did ?

Finally, in a new thread I have just recorded a small improvisation using both grand pianos from the cheapo yamaha and from the SD9:
http://www.synthzone.com/forum/ubbthread...und_#Post504529

regards
John