$99 for an external GPU dock is quite cheap, at least compared to what we've had in the past. Mind you, the other options were more like small cases for the GPU and power supply, but they also costed twice or more than this.
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.