For upcoming JPN trip, the only real train travel we think we need is Shinakansen service to Tokyo-Kyoto, RT. It looks, from hyperdia.com, like the RT Nozomi price is just a shade lower per pax than the JapanRail 7-day pass. Is there any reason to spend the few extra bucks and go for the unlimited JR pass? We'll be in Tokyo for 7 days, and Kyoto for 3, it looks like.