Punk finished plenty of shit mid 70s bands, fortunately.
Like who? Post punk all the number albums 1 of 1980
DATE TITLE ARTIST WKS AT NO.1
12/01/1980 GREATEST HITS VOLUME 2 ABBA 1
19/01/1980 PRETENDERS PRETENDERS 4
16/02/1980 THE LAST DANCE VARIOUS ARTISTS 2
01/03/1980 STRING OF HITS SHADOWS 3
22/03/1980 TEARS AND LAUGHTER JOHNNY MATHIS 2
05/04/1980 DUKE GENESIS 2
19/04/1980 GREATEST HITS ROSE ROYCE 2
03/05/1980 SKY 2 SKY 2
17/05/1980 THE MAGIC OF BONEY M BONEY M 2
31/05/1980 MCCARTNEY II PAUL MCCARTNEY 2
14/06/1980 PETER GABRIEL PETER GABRIEL 2
28/06/1980 FLESH AND BLOOD ROXY MUSIC 1
05/07/1980 EMOTIONAL RESCUE ROLLING STONES 2
19/07/1980 THE GAME QUEEN 2
02/08/1980 DEEPEST PURPLE DEEP PURPLE 1
09/08/1980 BACK IN BLACK AC/DC 2
23/08/1980 FLESH AND BLOOD ROXY MUSIC 3
13/09/1980 TELEKON GARY NUMAN 1
20/09/1980 NEVER FOR EVER KATE BUSH 1
27/09/1980 SCARY MONSTERS AND SUPER CREEPS DAVID BOWIE 2
11/10/1980 ZENYATTA MONDATTA POLICE 4
08/11/1980 GUILTY BARBRA STREISAND 2
22/11/1980 SUPER TROUPER ABBA 9