But is reliability the main reason? Is then the same not a concern in Asia? I would guess that perhaps a major reason is mindset, Americans were always used to

But is reliability the main reason? Is then the same not a concern in Asia? I would guess that perhaps a major reason is mindset, Americans were always used to two machines, while most Asians have only ever seen and used a combined machine. Think of it this way, will people who are used to combined machine be likely to switch to seperate machines? My guess is they wont.