It's called trying to justify your existence to the boss and the inflated programming charges to the client. "Yes we are expensive, but you can control pool-party lighting/audio/firepit/waterfeature scenes from every keypad...yes, even the ones that are no where near or related to the pool; yes even from the mother-in-law suite above the garage".

IMO keypad buttons are for quick on the fly mission critical control. I walk into a room...I want the damn light on in that room. I walk out of a room...I want a pathway created. I'm leaving the house...I want all off, if sensors report no occupancy. Fancy, hey look how I can do 100's of scenes and full access to every load is for touchpanels and web navigators. To me, there is no reason to have any more than a 6 button with up/down at any entry/exit/bedside. I want to walk in and not have to stare and think about which of 18-24 buttons I should press in order to go to bed or pick out my clothes.