Except that is's possible that the custom hardware that you speak of will end up costing more money as an end user wanting to buy one of these devices. The hardware that they were using was off the shelf, high volume hardware and thus not as pricey. Just a thought
There's been talk about Zuckerberg wanting to use Facebook's backing to release the Rift at lost cost[1]. That's a little scary in its own right, as it implies that Facebook may be looking to turn the Rift into something closer to a console.
You should write them an email letting them know about this as soon as possible. They've probably all forgotten that keeping costs down is desirable, and you're just the person to remind them.