The Pa50 SD is tactile. You feel the spongy, aftertouch-sensitive keys. You crank the Tempo Lock so the style doesn't speed up when you switch presets. You assign a Fill to a footswitch. You are playing the machine, not clicking it.
If you find styles for other formats (like Yamaha or Roland), you can use the Style Works XT utility to convert them for Korg use. korg pa 50 sd style download
Software / MIDI Styles (.SET format) Compatibility: Korg Pa50SD, Pa80, Pa60 (with occasional tweaking) Price Range: Free (amateur shareware) to $30–$50 (professional packs) The Pa50 SD is tactile