Right. Whether I arrive in London at 4pm or 8pm doesn't really make much of a difference. (Admittedly it probably lets you arrive on the continent without a red-eye--depending on supersonic over land rules--as you pretty much have to do today.)
All other things being equal, sure. But I'm probably not paying thousands of dollars to save a few hours. Maybe if that amount of money is basically pocket lint, but that's a tiny percentage of the population.
