If you're looking for stability.... Uncle Warren makes a pretty good case.

Excerpt from the 2006 Berkshire Hathaway Annual Report Warren E. Buffett - Chairman of the Board 03/01/07

A much improved situation is emerging at NetJets, which sells and manages fractionally-owned aircraft. This company has never had a problem growing: Revenues from flight operations have increased 596% since our purchase in 1998. But profits had been erratic.

Our move to Europe, which began in 1996, was particularly expensive. After five years of operation there, we had acquired only 80 customers. And by mid-year 2006 our cumulative pretax loss had risen to $212 million. But European demand has now exploded, with a net of 589 customers having been added in 2005-2006. Under Mark Booth’s brilliant leadership, NetJets is now operating profitably in Europe, and we expect the positive trend to continue.

Our U.S. operation also had a good year in 2006, which led to worldwide pre-tax earnings of $143 million at NetJets last year. We made this profit even though we suffered a loss of $19 million in the first quarter.