Problem with most comparisons is that technology advances, just a the comparisons between the Pa4x and Genos. Pa4x used older technology than Genos.

And as I’ve said before what percentage of an Arranger keyboard gets used before moving on to the next great arranger keyboard. How many styles, sounds effects never actually get used.
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Gem Wk4, Solton Ms60, Technics Kn5000, Korg Pa50sd, Yamaha Psr k1, Tyros 4, Korg Pa700