"HS Dent, an economic forecasting firm, compiled Census data [PDF] on spending behavior and presented them as a series of demand curves... The curves measure average annual expenditure for a given product over the age of the consumer." [more inside]
The Espresso Book Machine. A photocopier-size machine that can print and bind a paperback in a few minutes. This is the first fully-automatic book printer designed for retail locations, it is envisioned to be a kiosk. Current beta tests in DC and New York Public Library, also in talks with the Internet Archive and others to support the growing world of online scanned books. Further out, Kinkos, Starbucks, etc.. could become major book sellers and the practice of overstocking (and discounted books) could be reduced. Machine will probably be about $100,000.