Genesis was my favorite band for a long time; I first saw them in my college gym in Rochester, NY, in 1973 on the 'Foxtrot' tour, and yeah, they did a brilliant 'Supper's Ready' - I wish there was a way for me to insert photos, because I got some good ones from that show (and later shows, and PG solo).
I remained a fan after Peter Gabriel left; after all, most of my favorite music of their's was composed by Tony Banks, and I remained a fan after Steve Hackett left - I quite liked 'Duke' and 'Abacab', and even 'Genesis', but kind of lost interest after that....
I'd recommend that anybody who loves stuff like 'Get 'em Out By Friday' try to find an album called '9 Parts to the Wind' by a band called Strange Days, from 1975. 6 songs, four of them epic story/songs that could have come right off of a mid-period Genesis album, musically, vocally, and lyrically.