yamaha have just given free updates for the XS witha tonne of new sounds , Korg have done the same for the M3. Roland are the odd ones out by charging for their expansion boards. Yes its new functionality but Korg did that with a free new OS. Whats more roland are forcing its customers to limit the sounds it can have on the keyboard by only making them available via expansion slots. It has designed obsolescents into its keyboard which is just not keeping up with the general direction that keyboards are going in terms of their expandability.

Chas if you must have the board then purchase it but you know you will regret it sooner or later .