Apple introduced the Cube on July 19th, 2000 during the Keynote from MACWORLD EXPO, NEW YORK
Power Mac G4 Cube Delivers G4 Performance in an Eight Inch Cube
Apple
stopped the production of Power Mac G4 cube on July 3, 2001
as per their press release given on http://www.apple.com/pr/library/2001/jul/03cube.html
They
sold a total of 148,000 Cubes during the entire lifetime of Cube production.
It sold 12,000 units in the quarter ended in March, 2001.
http://news.com.com/2100-1040-269436.html?legacy=cnet
The
Cube was introduced at a price of $1,799 in July 2000; the price was
cut to $1,499 in January 2001.
Here
is a model wise, quantity wise, sale wise and region wise data breakdown
for the Cube.
http://maccentral.macworld.com/news/0101/19.apple.shtml