I don't think anyone has exhausted the range of sound possible in a conventional rock band, but people do become slaves to their own easiest techniques.
“Heartbreak can definitely give you a deeper sensibility for writing songs. I drew on a lot of heartbreak when I was writing my first album, I didn't mean to but I just did.”
“The most efficient way to live reasonably is every morning to make a plan of one's day and every night to examine the results obtained.”