They tell the backstory of how Aaron Bleackley discovered Spirograph, wanted something more, and so developed Wild Gears.
Aaron has run two Kickstarter campaigns that blasted way past their targets. That shows that lots of us are really interested in having something more sophisticated to play with and to make art with.
Ponoko provides a great platform for prototyping products and making them available to others, without needing to build a manufacturing plant, stock inventory or set up a shipping department.
I for one am very happy that Aaron Bleackley and Ponoko discovered each other! And that I learned about it from a friend of his, Barry M Sawyer, who visited this website and left a comment and a link. Thank you, Barry!
UPDATE 2020: Note that Aaron is now producing Wild Gears in-house with his own laser cutter.