Sigh. Each HMD has pros and cons. You do the industry a disservice by warping facts.
Lighthouse tracking is indeed excellent, and tracks a larger volume. However, the Rift's sensor approach is /currently/ almost indistinguishable from Vive's tracking. Its historical performance, significantly hampered by a bad software update, has no relevance to someone considering an HMD today.
A third sensor is only $59, not $79. Saying "worse, you'll need to spring for..." implies this is somehow a severe negative, when the reality is that the extra cost of a third sensor still leaves the Rift over $100 less than a Vive (the magnitude of price difference depends on shipping costs and how you value the bundles of free software).
Again, while Lighthouse tracking can be considered "more premium", the general consensus is that the Rift has more fit and finish, is significantly lighter in the front and thus more balanced, has better optics (larger sweet spot and less screen door effect), and the convenient integrated audio (which can be removed if you have high-end headphones) all lead to it being thought of as "more premium" in other ways. The Vive's design, while exceedingly functional, is more "hacker chic" than "honed design".
Of course, the above positives on the Rift are traded off by a slightly smaller field of view, a somewhat dimmer screen, and less compatibility with glasses vs. the Vive.
Additionally, complaining about the cost of a third camera is disingenuous when you then talk about all of the other incremental (added cost) options available to the Vive. Some will come to Rift (e.g., wireless), some bring the Vive to parity (e.g., thinner cable, comfort gaskets, and [unmentioned] a more comfortable head strap with integrated audio), and some are truly cool (e.g., eye tracking and trackers) for those wishing to really be at the cutting edge of VR. But all significantly increase the cost delta.
Finally, implying something nefarious about the "encrypted connection to Facebook's server" is really beneath the level of discourse I expect from HN. The Oculus software checks for updates over a TLS-encrypted session - that is all, as has been confirmed by network analysis. Frankly, I would be upset if it didn't use encryption to protect my information.
The Vive is a fine product, and stands on its own. You do not need to provide misleading or biased information about its competitor to promote it.
The fact is, both HMDs are great. Do you have a 15'x15' space? Buy a Vive. Is price a factor, or do you run on lower-end hardware? Buy a Rift.
Otherwise, try them both, see which fits your face better, see which trade-offs work for you, and buy the one that makes you happy.
You can't go wrong, and VR is SPECTACULAR.