I just don't see the upside for Sony. If they are selling it at cost or at a loss, they have to recoup that in software. You're basically asking them to sell it at the same price, develop an adapter for the PS camera, and develop drivers to work with Windows...all for what? So they can sell more hardware at cost or at a loss? What's the gain for them?
Because that is not likely what would happen.
PS4 users: of course are going to buy PSVR.
PC users: are going to be buying a different headset. There are better options.
PS4/PC users: What are they going to do?
Well, they are going to have to choose between PSVR and a PC headset.
Considering that PC can be modded and VR could likely be supported even if not officially, they could be pushed in that direction. Particularly if people aren't comfortable with how things are going. Motion Control and Vita, weren't particularly well taken care of by Sony, and having to make that decision for this third group may sway some to stay PC.
This means that Sony would be losing the PS4/PC users that would be buying games for both. This means that the PSVR market could be smaller, which in turn means less PSVR games are made which means they won't sell as well.
This group at the very least would be buying on average enough games to make their purchase profitable for Sony. Though they probably won't be buying 10 games on average, it will still be a boon for Sony.
I think it really depends on how dedicated Sony is to making VR a success. If they are very dedicated, it probably won't be much of an issue at all whether the headset supports PC or not.
That's the gain for them. A portion of the market that is very likely to go over to PC only instead.
How is this relevant to missing out on sales because you're limiting yourself to one platform?
OR and Vive will be better supported, even if they aren't officially supported.
PSVR is more dependent on developers. PS4 is a closed system, and requires licensed developers to make games for the hardware. Thus PSVR is far more dependent on the success, how ever it gets its success than the others.
OR and Vive do not have these same concerns. PC games can be modified, and some already have been to support OR games.
If PSVR didn't support PC at all, and never saw a single game released, it would sell nothing.
If OR or Vive never saw a single game released, it would still be able to sell some. Not a lot in any measure, but it would easily sell far more than PSVR.
With OR/Vive, games could be modded. It would likely be more accessible to other pursuits as well than PSVR.
Sony won't even produce a proper driver for DS4. There is no way the PSVR leaves their platform.
Don't really need a proper driver. We can still use a DS4 for PC games. I use it to play emulators, Xbox games, plus there are some games that natively support it on PC.