Nick is the wild card here. No offense to him, but he's the unknown. Even if Phil is in a chair, he's not Bruce Dickinson. This is a drum-centric band, though, especially up through the self-titled. Can he carry a band of this stature? I don't know. I know I personally lament the lack of the double-drumming aspect (one of my two favorite things about Genesis, the other being Tony Banks), but that's offset by seeing them in an arena. I'm not a stadium guy, so the allure of seeing them in the Garden, is STRONG, even if the band is not at the level of sharpness they were in 1987 when I saw them last.