The 650 has been superseded a few times as the current model is the 670 which does not have a touch screen as far as I know.
Yamaha have been slow at introducing touch screens compared to the likes of Korg and it is with the Yamaha SX range and Genos that touch screens are definitely included.
Btw Emil . . This model is about 9 years old now. Buying second hand needs careful scrutiny. Pay no more than $500. The new generation model is only a few hundred more. If you really need touch screen then look at Korg.
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