Virtual reality will become the biggest market for 3D content, period.
Regarding the 3D printing, coincidentally just yesterday heard the founder of materialise talk about the future of 3D printing (materialise is one of the world leading companies in 3D printing located in Belgium).
He told that 3D printing will not become a wide spread consumer activity as predicted (in near future).
The reason is, you still need a fair amount of technical skills to operate the printers successfully. That means investment of time to gain experience, time most people do not want to spend (most people want instant entertainment, no troubleshooting).
The consumer printers are also still fairly expensive and limited in what they can do. On the other hand specialized companies like materialise have lots of experience and are always getting the best printers the industry spits out. So by the time one can afford a general 3D printer, those companies print in full color in much more exquisite detail (using most advanced printer technologies available).
He also pointed out that more "small" companies in 3D printing are entering market, (as a result of startups ho gained foothold/experience through the use of those early consumer printers) and that they will dominate 3D online printing services for at least next 10 years.
So it may seem mass consumer 3D printing had some liftoff, it was actually the start of a professional market of services and product developers. So the 3D contend is made and printed by professionals, not consumers (for next 10 years).
Most of these small startups are listed here (https://www.3dhubs.com/) amongst them are in fact small (garage big) startups hoe actually have laser sintering 3D printers.
I did a 3D print myself via one of those hubs, and fairly speaking that went so well I don't even consider baying a low grade 3D printer myself.
Of what the man was telling I could understand It's a falls believe to think that consumers are going to massively buy 3D printers and then go online to search for things to print.
The gadgets and printing will all be part of online professional product developers services/startups, and they will be the ones hoe buy 3D printers and stay on top of the technology and pull the technology forward so that it eventually will become mature as a mass consumer product (10 years away).
On the other hand consumer viable Virtual reality is a different story, it is about 1 to 2 years away and it will deliver instant entertainment strait out of the box, and it is going to be affordable and very easy to use. It will be a booming market so big that it has seen no equal. VR and augmented reality is truly something that everyone is going to do (mark my words).
Note: these are opinions expressed by people, reality is unpredictable and remains to be seen.