Oculus, first to "invent", (almost) last to market.
Given all the hype and big names that joined the Oculus team, and even the sudden sell-out to Facebook (leaving most of their Kickstarter backers feeling used), Oculus has yet to produce a consumer product.
At this pace, they're on track to be 3rd to market (well, "tied" if we count pre-orders being taken at CES), even though they were "leading the way" just a short time ago.
In addition, from a consumer perspective, their "finished" product looks almost identical to the "developer" previews they shipped years back...