See: "http://linuxtoday.com/news_story.php3?ltsn=2002-05-18-002-26-NW-HE-SV";
"When Joe Poole looks at his IBM zSeries mainframe, he doesn't just see a powerful system running traditional corporate workloads. He sees a distributed Linux environment that's starting to save his company big bucks. "'Running Linux on the mainframe is inexpensive,' says Poole, manager for technical support at mid-Atlantic retailer Boscov's Department Stores. 'We expect to see a two-year payback.' "Those types of returns seem to be typical among the adventurous IBM mainframe users who have begun to shift applications from networked Intel Corp. servers to their data center workhorses. And analysts agree that for many companies, Linux on the mainframe can have a lower total cost of ownership (TCO) than supporting applications on hundreds or thousands of distributed servers..."
