...more than one-third of projects are abandoned after being implemented, and only 37 percent of finished projects met users’ needs.
It gets even better...
InformationWeek’s survey results were confirmed in an August 2007 report by Nucleus Research, which found that only 37% of 106 organizations it surveyed actually were realizing ROI from their investments in SOA technology and programming.
And here's the conclusion of the blogger...
From all my sources, it looks like SOA worked out as well as you can expect any good technology to work out.
Imagine you have yourself a house built and have a one-third chance that you get a door to enter it. Isn't that a wonderful industry we are working in ? ;-)