Vintage looks, contemporary performance

Meh.

All this lack of weight, and bike stiffness gumbo, is about feeling fast. Most of the energy lost riding a heavy bike up a hill, or flexing a chainstay. Is returned, either whe you desend the other side of the hill, or the chainstay flex's back.

So yes, tests give similar time for wildly different bikes. But I dont particularly want to get to work early anyway. I do like to feel fast though.

Agreed. I commuted faster on my road bike because it had gears and brakes and all that jazz, but my track bike is lighter and means it felt nicer to accelerate or take corners on.