or don't be a thirtysomething bloke who knows all the words, sings along and bobs on the spot.

And yet you won't be there!
Hmmm. I remember being a bit disappointed last time I saw them, but that was nearly 12 years ago. They seemed to be doing it for the money then - are they better now?
I haven't seen them in Edinburgh since then. They've been very good the times I've seen them since then, but that's been closer to Birkenhead, so they might not have been as tired.

You'd be better asking someone who saw them here last year. CJ might have gone.