Good ideas that Toshiba decided not to continue

Found this in Wikipedia. Why did we stop these? If I remember correctly, they sold pretty well. http://en.wikipedia.org/wiki/Toshiba_Libretto The Libretto is a line of subnotebook computers designed and produced by Toshiba. The line was distinguished by its combination of functionality and small size, squeezing a full Windows PC into a device the size of a paperback book. The first Libretto model, the Libretto 20, was released on April 17, 1996 (in Japan only), with a volume of 821 cm3 (50.1 cu in) and weighing just 840 g (30 oz), making it by far, the worlds smallest commercially available Windows PC at the time, and a trend the Libretto Range continued for many years. The original Libretto line was discontinued in Europe and the U.S. in 1999, but the production continued in Japan with the SS, FF and then the L series until 2002. The first L series Libretto (The L1) was released on the 18th May 2001 (in Japan only) and the last (The L5) just 11 Months later on the 24th April 2002. Production of all Librettos ceased from 2002 until the release of the Libretto U100 in 2005. It was a further 5 years before the Libretto returned again in 2010 with the limited-edition dual touch screen tablet W100 model.