It's an unending debate among rock fans--why the heck some of rock's greatest artists have not yet been inducted into the Rock and Roll Hall of Fame--sometimes the bands or artists aren't considered impactful enough to be included, sometimes it seems like rock acts are being snubbed. A few glaring omissions: Robert Plant for his solo career, Bad Company, Bachman Turner Overdrive and Randy Bachman's earlier band, the Guess Who, and Ronnie James Dio. here is a very long list of rockers still not in the Hall, with explanations and frustrations expressed by the artists themselves: https://ultimateclassicrock.com/artists-not-in-the-rock-and-roll-hall-of-fame/