Have you heard of economies of scale or learning curves?
Yes, and both those factor are likely working
against them, not for them. These are new, custom parts. There's obviously no learning curve advantage building something new compared to standard parts that have been in production for years. I don't understand why you're even suggesting this. As for economy of scale, that could potentially go either way...but U rather suspect that with many of the components they need, a mere couple hundred thousand units is probably not a particularly meaningful quantity.
Just to give one example, you specifically mentioned $10 for a high end accelerometer. Let me quote you:
They should be able to get a better price then what I found from typing a few specs into Alibaba.
Even if you are going for high end suppliers you are still talking like $10 for an accelerometer instead of 50 cents.
Ok, well let me
type that into alibaba. First page, I see some $600 accelerometers. I dont' know where you're getting this "$10 for a high end one" idea. Yes, there are some for pennies, but not knowing the requirements for their parts, it doesn't make sense to arbitrarily assume that the bottom-most cheapest ones are a suitable basis for comparison. I do note in particular that
the second one on the list, which sells for as little as $11 if you buy it in quantity, is for android phones...and we know that phone accelerometers
aren't good enough. That's a large part of the reason that Gear VR even exists. The standard tracking on a phone isn't very good, and Gear has an accelerometer in it. I've demod both Gear VR, that you can stick a Samsung galaxy 5 into, as well as google cardboard with my own personal galaxy 5, and I can assure you that tracking on gear is
much better.
I have no idea what oculus is paying for specific components and neither do you. But plugging generic part types into an alibaba search to look at the cheapest stuff you can find and concluding that high sensitivity custom parts should be cheaper is not reasonable.
I find your metaphor inapplicable because we aren't talking about buying completed product (cars), we are talking about buying parts. It's cheaper to get a part for a supply line in bulk quantities then it would be for a mechanic to order one online.
Ok. Well, clearly whatever it was you thought would be the case is not the case. So, *shrug*