I honestly think it's a bit ridiculous to kick up a fuss and make out that Oculus OWES you something like a cheap upgrade to the new dev kit or a full refund on your current dev kit. Why?
When you buy a new graphics card, and the new generation comes out a few months later, you can't whine and demand that AMD/nVidia gives you a full refund or a cheap upgrade to the newest stuff. Why would they? This is the same as ANYTHING you buy in life pretty much. You got what you paid for...
Would AMD or nvidia say that they were not going to release another card?
If they released a graphics card 80000 and stated they were not going to release another card, but then they came out and said they were gonna release graphics card 90000, people would be upset.
This has ALWAYS been about a device for devs, not consumers. In no way are you being cheated, unless you are a consumer who didn't want to pay attention to what Oculus has been saying loud and clear