This is from an article in Fortune magazine about rich folks under 40. The founder of Alpinist magazine has 120.4 million to burn and can afford to lose money.
http://www.fortune.com/indexw.jhtml?channel=artcol.jhtml&doc_id=209305
Marc Ewing, 33
Then: Red Hat
Now: Alpinist magazine
Leaving Red Hat, the software maker he co-founded and that made him a paper billionaire by age 30, was literally a breath of fresh air for Ewing. (He retired in 1999 because "I was tired of it. I thought, Why don't I do something closer to what I really like to do?") Since then the married father of two has been focusing on his favorite hobby: rock climbing. Earlier this year Ewing decided to use some of his estimated $120 million (see Easy Come, Easy Go) to start Alpinist, a quarterly magazine whose first issue hits newsstands in November. Alpinist is aimed at both the experienced climber and the novice, a niche Ewing says hasn't been tapped: "It could be both a great business and a great contribution to the climbing community."
I imagine Mr. Ewing was not quoted correctly when the magazine was described as "... aimed at both the experienced climber and the novice, a niche Ewing says hasn't been tapped" since this seems to describe many (all?) of the existing climbing magazines.