Mick’s solo albums were awful, and he toured in support of the first one. It was an embarrassment, especially when these non-Stones played Stones tunes. Keith called him out on it. Mick’s had four solo albums (Five, counting the “Very Best Of” collection, half of which was duets with heavy hitters liken David Bowie and Bono) and while they charted, I suspect none of them broke even. Keith has had two, also kind of unremarkable. Any solo efforts by either of them at this point would be pounding sand down a rat hole.
I saw the Stones’ Voodoo Lounge tour 13 or 14 years ago. Everyone went nuts over the old 60s-70s material, but the songs from the album they were touring to support were met with indifference. Their opening act, The Counting Crows, had an album out (August and Everything After) that was at the time outselling Voodoo Lounge at about ten to one.
The Stones haven’t been THE STONES in quite a while and further tours have the stink of diminishing returns. It’s time for a quartet of dignified retirements.