[Aeolun]

> It's all about speed and convenience, not luxury.

I don’t think this is necessarily true. Gran class seats on a shinkansen are some of the fanciest I’ve seen. It’s not quite like a first class airliner, but I think that’s more related to the shorter journeys.

[bobthepanda]

A lie flat like an airliner has limited value on a train that is at most five hours between Tokyo and Fukuoka.

It would probably be more luxurious to put in private train compartments, which already exist on Japanese trains, but not on Shinkansen due to a capacity crunch.