He's saying the old headset already comes with the PU anyways, so you need a new SKU that comes without not to duplicate costs.
If the PU is cheap enough they might just be willing to eat the cost.
yeah that would be the only real challenge i could forsee.
they could always just make it to where the PS4 Slim simply comes with all that built in and all the extra ports. you can still use the PU and launch headset with it fine if you want, but it isn't necessary.
maybe leading up to the Slim launch they could stop making the standard PSVR sku, and instead start making a headset-only sku, and then a "value" sku that comes with the PU and all the normal stuff the original sku had, and maybe throw in the camera and some game vouchers. that way original PS4 owners could get the value sku and newcomers that only own a Slim could buy just the headset. in all scenarios every PS4 would be compatible with the value sku, the headset-only sku would require a Slim, or sold-separately PU.
either way, it might be too late into this gen for them to commit to that kind of hardware package shuffling, so if we don't end up getting it then nbd. they could always slim down the PU in a later revision of PSVR.
i'd actually like to see them offer a PS4 faceplate that has a built in camera stand, so you could have the camera clipped onto the top of your PS4 to keep it from getting knocked over or the cord pulling it.