Iron Butterfly released their first album in 1967. Not many people noticed. In 1968, however, their album In-A-Gadda-Da-Vida became the first platinum album in music history, in large part due to the unconventional and revolutionary format of its eponymous single. By the end of 1970, they had released two more albums, neither of which achieved any level of commercial or critical success. That was the end of Iron Butterfly.
The Rolling Stones released their first album in 1964. Over the course of several more albums spanning the next four decades, they became one of the seminal bands in music history. Their latest album was released in September, 2006 and inaugurated with a concert in Boston, attended by a sold out crowd of 44,000 enthusiastic fans.
Necessity may be the mother of invention, but reinvention is the mother of longevity.