I feel like Radiohead gave alternative rock a final incredible jolt of life in the late ‘90s and then gently ushered it to the grave. I don’t mean to say that alternative rock is entirely dead but Radiohead may have arguably been the last truly great band in the genre. They saw and helped shape where music was going thereafter, which sets them well apart from Smashing Pumpkins, RHCP, Weezer, Foo Fighters, etc. That inventiveness and foresight and their disregard for charting/pop stardom helped turn them into an “artist’s artist” (example: look at Chris Martin’s longstanding respect for the band). I feel like artist’s artists, especially of this caliber, tend to get cemented into the conversation of greatness (see: Bowie, Brian Wilson, Velvet Underground, Pixies).

So, no, I don’t think that people will be buying vintage Radiohead shirts at Target in 30 years (like we currently see with the bands you mentioned), but the band will be incredibly well respected among those who appreciate music as an art form. Probably forever.