Yamaha are targeting their drums at a particular user. The home user. And their needs will be very much different to a live performer. And in particular a performer like yourself Diki. If a home user needs to reboot the entire keyboard to load up another set of styles with real audio drums, what difference is it to them? But to a love performer that two minutes three-minute delay in time could be critical to keeping an audience captivated . yamaha are certainly not shooting themselves in the foot. They are focused on the home market and not the pro market