For the mega-rich: $80,000 trip to bond with college chums

I received in the mail a glossy travel brochure from the Northwestern Alumni Association with an offer to join a three-week trip to Africa and South America. The journey, called "Cape to Cape: An Expedition by Private Jet," looked so impressive on the cover that I looked inside to see whether it just might be too fantastic to turn down. It was. Too fantastic, that is. And this raises questions about the way colleges and universities raise money.