Have to disagree there, the original prices on launch of the Audya was £3999 and the Tyros £3450, so not sure where you got the £200 cheaper from unless you were comparing it to the Tyros complete with speakers, stand, volume & Piano pedal, which even then could be got for cheaper than an Audya.

As to being overpriced, then this cannot be quantified as the Audya has features that other arrangers don’t, so you can’t directly compare them.

Bill