Coming off the back of previous posts - is there a gig/concert/festival that you really really wish you could have attended but couldn't?
For me, I would have loved to go to Glastonbury but never could when I was younger and now feel I'm probably too old (plus slightly horrified by the cost!!)
I also wish I'd been able to see Robbie Williams at Knebworth because I think that was a once in a lifetime experience that I will never get the chance to say 'I was there...' for