"2 -- Short haul. Carrying extra fuel is usually a relatively minor problem with respect to pax/cargo and cost. Frequent sectors and business style pax demand low diversion frequencies as a high priority."
I could not agree more. Try costing the goodwill of the pax who have missed their connections/meetings/etc. and are now sitting somewhere else, unable to get off and waiting for the 'plan' to come together to get them to where they paid to go in the first place! Sometimes though, as has been said already, it is better to scoot off early and refuel 'first in the queue' if you cannot wait.
PS AC - No offence taken - all in "the best POSSIBLE taste" as KE? used to say. I was only 'joshing'!