If IBM is doing it..
.. it will be expensive, but also scale like there's no tomorrow - the virtualisation they have managed to set up on the Power range is impressive.
In addition, an IBM product I may be able to lock down to an enterprise so it ensures continued compliance with various pesky laws like HIPAA and Data Protection which Google ignores, but which can bite a company making the mistake of Google for business in such a setting a potentially costly mistake.
There will also be one other thing happening: only those with a clue will use it. IBM has traditionally been, well, totally crap at marketing. Even if it has a good story you'll never hear of it other than by accident :-)