Thing is, I think we are talking about panel graphics...
No matter WHAT system is chosen for electronic selection, whether you can replace the ROM styles, whatever, those panel graphics are still indelibly there, mocking the young with the realization they are choosing something their granddad had/needs

I have long said that arrangers need the modular style set approach, but I don't believe that they should be SOLD with one selection or another in them... they all should contain ALL available styles. But there should be some way (a magnetic strip, perhaps) to replace out the graphics for style category so that it can be made to LOOK like it is either set up for the young or old. And then load the appropriate style set.
That way, a vendor could keep TWO arrangers on his shelves. One close to the Clavinova's and other arrangers, labeled for us elderly types, with Ballroom and Bossa/Samba emblazoned all over it, and another one right next to the M3's and MoXS's, with Hiphop and Slow Jams and Metal and Emo emblazoned on it...
I guarantee they would sell better under those conditions...