I'm exicted too, esp. for VR and great AR. There is a list of problems with VR:
1) Difficulty to get in. (including tech. dif.) Only when the modern (for the time) Elderly and Youth will be able to access VR services/games/anything as easily as they are able to access messengers on their smartphones, it'll become mainstream. I do believe that this time will come, but obviously not in 2019. lol.
2) Costs. It's not enough atm to get a VR set only, you also need a computer, that is able and powerful enough to use it.
3) Very limited amount of diverse content/services. The internet is full of cats, games and porn, but it's not enough to make VR mainstream. Among great services, I would imagine something like an online shop in VR, where you can look at the products (dimensions, materials, quality as a complete VR 3D model), maybe even with some basic functionality. A step further would be try some clothing on online. (but that's way too far away).
4) The current VR tech itself is interesting, but it has to evolve too. It's not an alternate (digital) reality yet.
For instance, our primitive 3D image tech exists since the 19th Century and it hasn't really improved that much. VR has to improve.
That is just off the top of my head. Maybe there is more, I'm pretty sure that there are and will be some security issues too and so on...
P.S. and the thread is officialy off the rails. Gratz :p