According to the Gartner, Inc. (NYSE: IT and ITB) Information Security Hype Cycle, IDSs have failed to provide value relative to its costs and will be obsolete by 2005.
From Marty's response:
Let me get this straight… better access control will completely remove the need for auditing? Auditing functions are a fundamental part of providing defense in depth in any security environment. Do they not understand this or, perhaps, have the economic challenges for industry analysts led them to the point where citing the outrageous is a competitive necessity?