Selling spades in a gold rush?

nicholas on 2008-10-19T18:00:35

While in Heffers this afternoon, we spotted The Entrepreneur's Guide to Second Life: Making Money in the Metaverse and a book on programming Second Life, the title and publisher of which I forget. And I thought why? Just why would anyone write these, how many will actually sell, how will Wiley make their money back, and how many people who buy them will actually turn a profit?