This feels like when Led Zeppelin played the O2, I did not feel like I was missing out not only because I couldn't afford it but also because I had seen them in their 1977 heydays and had an incredible time.
With this new Genesis tour, I feel it is no longer the same. Back in 2007 I was very motivated mainly because I had never had the opportunity to bid farewell to my live experiences with Genesis whom I had seen 10 times before. And saw this tour as the perfect chance to seal it with a Golden ribbon and I actually did, fortunately.
Time is unforgiving for us all, the band are older. I am sure Tony and Mike still play flawlessly but Phil: his voice has diminished, no more forehead and knee tambourine bouncing antics, no more drum duets with Chester or much less the "we can't dance" marching along trio.
But if they do it the right way like Steve Hackett does, this tour can be a triumph and as I said before, the makeup and stage show needs to be different. Not necessarily acoustic but to add an intermission, play mostly instrumentals (to allow Phil's voice to rest) and a complete album (even Eagles did this and have sold out everywhere). One more suggestion: add 1-2 players to the ensemble, having only Daryl Steurmer is an outdated formula and needs a shot of new younger blood. Just ask Pete Townshend and Roger Waters.