I wonder if it would be worth somebody trying a first class bus or a first class section on the bus. I've was on something similar in Korea years ago.
My personal objection to taking buses for my commute is that there isn't enough room to work on a 15" laptop on a bus. If they had 3 seats across and a table, there would be enough room. Would it more be cost-effective than the train to run a bus at such density? I'm guessing you'd get the equivalent of 40 passengers on a tri-axle.