It is the same with pop records or bands however the music industry appreciates and understands that nothing is forever. People should apply this thinking to community sites and expect a cycle of life. Instead we have myspaces worth billions to then be worthless and Facebook where they don't see it coming.

Much like pop records or bands there are some things that have a different life cycle. People still by records by that outfit that called themselves 'The Beatles' but there is no 'Beatlemania' any more.