The market for dev kits can't expand in time to meet consumer demand, nor would it be cost-effective to try to do so. It takes a lot of capital to ramp up to full consumer production capacities. And, any dev kit taken out of the hands of actual developers will tend to limit eventual dev support at launch time. It's crucial to get those devices into the hands of actual developers in order to ensure there is actual support for the product at launch time. There's no need to expand access to this particular product, because it's not a consumer product.
All these are reasons to continue selling the product, at a higher price, and to resellers (if they'll still buy).
Higher market prices expand access to a product... period. That's called the law of supply.
The amount of capital consumer production would take is irrelevant. They're selling one product, it's designed for developers, and at the manufacturer price, there's a shortage.
If the kit is being resold, it's still getting into the hands of someone who wants one, and it ensures that they have guaranteed access to one, which is something Occulus isn't doing! (And if discriminating between developers vs. others is a stated goal, they've already completely failed at it. However, who else but a developer would pay the higher price for hardware that's supported by no games?)
So do you want to ensure that developers can get their hands on this, but you don't want to expand access? That's mutually contradictory.