I think maybe physical buttons. Pushing button is better than everything hidden behind nested menu on the screen. For example low-end TV's menu is insanely lag

I think maybe physical buttons. Pushing button is better than everything hidden behind nested menu on the screen. For example low-end TV's menu is insanely laggy nowadays because of the limited processing power of on board chip. And useless transition animation add to the lagginess. Chain restaurants in Japan upgraded their old school vendor machine to LCD screen counterpart, and they all suck.