At first I thought that failed Kickstarters were a small minority of projects, but I've come to think that failed projects (or at least greatly delayed) are the norm, rather than the exception. Of 4 projects I've funded 1 was delivered as promised and on time, 1 is currently on pace to be delivered only slightly late (~1 month), one is 5 months late and still being designed, and one is mostly content complete but over a year late for physical delivery. People really, really don't seem to realize what they're getting themselves into with these, and drastically underestimate time to completion.
That's actually just the percentage of projects that hit their funding goal. There is no indication of what percentage delivered.
I suspect someone could figure this out. To my knowledge, all funded projects still have accessible pages. You could go through them all and see which have updates that indicate shipping...
