It's neat but I don't know that I fully understand the appeal of the Oculus Go, so this thread has been interesting to read through. I'm sure that there's an audience for it I just question how big it is. Sure it's cheap and easy to use but the kind of VR it can do is more of a cool novelty rather than anything most people would want to stick with. With stuff like Gear VR and Google Cardboard at least that is all generally free or even cheaper than this is. Again, not saying that I can't understand the appeal of this at all, I just find it kind of strange.
Going long term Vr will have to break the shackle and untether from pc/smartphone etc to reach mass market status. They are really just setting the foundation here to provide clutter free vr solution with an affordable price tag with this. Not relying on smartphone means the standalone Oculus Go should (hopefully) evolve in a faster pace than Gear VR which also provide more room for improvements to mobile VR games.
In addition not everyone has a Samsung Galaxy phone, and an Oculus Go is a much better and cheaper option than Samsung Galaxy + Gear VR for these people.