Yes indeed, the Stones were the first band that came to my mind too when I was reading this. They have put out some amazing things but also a lot of crap, especially the last few..well..decades? A lot of their stuff sounds the same and is really boring. The Beatles may not have existed as long as the Rolling Stones, but at least they didn't keep repeating themselves.
I would have loved another Beatles album. Or two. Or ten. But like everyone says, we don't know what would've happened and what shit they would've put out. So what's happened is fine ...