MBA salaries increasing

The base salary and bonus has really jumped high, the number of companies in campuses has increased a lot and companies are making 10-15 recruiting presentations.
Does this clearly means that the ROI on a decent MBA is luring enough to make us work hard for a good good application . . .

http://www.bloomberg.com/apps/news?pid=newsarchive&sid=aynpPWL1QRS0