Being unable to land is problematic because what goes up must come down eventually. Clearly it came down in a controlled manner as you're here writing comments. The alternative, uncontrolled manner, isn't so good though huh?
I get what you mean though, the loss of time when turn-arounds occur, even delays that prevent take off. Having to travel from Australia to other parts of the world means that the travel time is long and to get the most from the huge cost one tends to stay abroad for longer; losing days is losing money and the time may never be recovered I guess either.
Upgrades to business class are always welcome and often make up for vibrations huh? Ok, not really, but for a vibration non-lover like yourself I'd say it's easier to deal withe them from business class than the back of the plane.
Yeh uncontrolled down sounds like a bad idea XD
I value time a lot more than money so it did hurt x_x
I don't know I only recall flying business class that one time. If there were other times it might have been once or twice. It didn't help the vibrations in the slightest but the extra perks were nice XD