what? disappointed, you have got old mate, sorry
1) you say; they did not come on until 12:30. SO? they were not expected before midnight any how, the anticipation is fantastic knowing wthat you are about o see you favourite band (I assume); did you have to be somewhere else, I really don't get that, I would not care if they came on at 2:00 a.m.
2) the crowd surge; I was also at the front and several times helped someone up off the floor, yes it was mad, but I chose to stand there, and loved it, I came out bruised and battered but knew it was just such high energy stuff, it was MENTAL, we all lost it, completely...and the numbers in is not the bands fault, besides I am sure it would have been quite comfy at the back, and still with a great view.
3) an encore would have been nice yes I agree, but at end of day the band had a planned set (gearing up for the festivals where I am sure an hour slot will be about right)
and I am sure they were prettty fucked too, they gave us so much you can't complain at their commitment.. never ... not the Prodge