<< You need not order plugins anymore.
<< Instead just go to the plugin page and download the addon.
The reason for this decision, after years of work: since the end of Softimage's development, its sales have fallen and Eric Mootz explains that it is simply no longer financially worthwhile to maintain this commercial activity. So he prefers to offer them all for free and move on.
Some are also valuable for C4D, Maya, Modo...

http://www.mootzoid.com/plugin




etc...