There have been folding keyboards for a long time.
https://www.google.es/search?q=folding+keyboard&biw=1920&bih=911&tbm=isch&tbo=u&source=univ&sa=X&ved=0CCIQsARqFQoTCPbomcyr8sgCFYdwGgod3rcD9g
The only thing that's new on that one are the mechanical keys. And $200 is a lot for a Tenkey-less keyboard.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.