Interesting article on the TI-84 and the graphing calculator market

[Benoit Maag]

It is not so common to hear some market information on calculators, so this article in the Washington Post is interesting in that it gives some numbers: 1.6 million graphing calculator US market, down 10% from the previous year, 93% share for TI and 7% for Casio... how about HP? Some response to the article seems due, but then again, does anyone have any idea of HP-50g or HP Prime sales?

link to the article:
http://www.washingtonpost.com/blogs/inno...lassrooms/

you can also link to it from engadget:
http://www.engadget.com/2014/09/06/recom...ng-8-6-14/

Benoit