Looks like the same ol', same ol'...
Once again, I repeat... the ONLY people who do not like touch screens on keyboards are those who have accepted that Yamaha do not want to give them one, and have never used a Korg or a Roland long enough to get used to it.
Most arrangers out there have roughly the same number of primary buttons for use while you are playing, but the touch screen allows FAR greater choices for other stuff on screen. Yamaha has a total of what, 18 things you can select from on screen tops, with most pages far under that number. Usually ten (the five side buttons from each side, for sound or style selection, right?).
Guys, I've used BOTH types of arrangers. There is simply no comparison. Wait until you use a good one, THEN tell me not having a touch screen is good, OK? LOL
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An arranger is just a tool. What matters is what you build with it..!