For Cino, wasn't it more lack of documentation of the graphics card? This meant that all the work had to be done by the processor. DVD playes were then available for £30 (and falling). The amount of work needed to get the required performance would never get paid for by the number of potential sales at that sort of price.
(Note, Kinoamp can manage half the required frame rate in optimum circumstances. And I don't think the developer even has an Iyonix to test it on.)
However the goal posts have moved anyway, with HDTV.