Not long after I posted about reuse I had the good fortune to visit a company embarking on an ambitious reuse program.
For obvious reasons of confidentiality I can't mention the company name or give any significant details.
However what I can say is that it is a fairly large company with a large IT budget, and they have done a very careful study of reuse, including organizational issues, skill set issues, budgetary issues, and so on. They have executive buy-in. They even have a prioritized list of candidate services.
They realize it will be a challenging project but they are confident that it will improve their overall IT effeciency and reduce the overall IT spend.
So a little evidence on the other side of the question...