But the Triton would have 61 keys, yes?

I don't know if Korg uses Yamaha keys, but the feeling on a Yamaha keyboard is much better than the feeling on a Korg keyboard. The best keys in my opinion have Roland, Kurzweil and the Novation SupernovaII (as well as some Quasimidi-boards).

But I know that Roland uses (cheaper) Fatar keys.