Well its been 4 yrs. or so since the PX-5s was introduced. To date, the PX-5s still has unique features that adds value to its competitive pricing.  But Roland has released its value digital piano+synth Juno DS-88 and Yamaha's MX-88...so competition is catching up at least with the digital piano+synth-function model.   May be its about time to introduce a successor to the PX-5s that improves on the current features of the PX-5s to make Casio's "Pro" stage-keyboard line more appeal