I think my first thoughts were a bit harsh
For fun it's not actually that bad of an idea. Maybe the creator could put a longer launch pad to line up a ton of planes to launch at once.
The whole contraption is full of bits and pieces to put it together such as plastic suction cups, pulleys, nuts, plastic rings, batteries, screws, motors and other buts and bobs. I still don't get why it's needed though as throwing a paper air plane is all part of the fun after building it. But from a project point of view it's good to see something can still be created like this.
Check out the video below to see it in action...
Via: TechNaBob