An anonymous reader writes "Sanders Kleinfeld explains how his experiences with a Makerbot device led him to the decision that 3-D printing hasn't quite arrived as a legitimate, consumer-friendly technology. Quoting: 'Waiting five hours for your Yoda feels like an eternity; you can play approximately sixty rounds of Candy Crush Saga in that same timeframe (although arguably, staring blankly at the MakerBot is equally intellectually stimulating). To make matters worse, I’d estimate MakerBot’s failure rate fell in the range of 25%–33%, which meant that there was around a one-in-three chance that two hours in, your Yoda print would fail, or that it would finish but once it was complete, you’d discover it was warped or otherwise defective. ... The first-generation MakerBot Replicator felt too much like a prototype, as opposed to a proven, refined piece of hardware. I look forward to the day when 3D printers are as cheap, ubiquitous, and easy to use as their 2D inkjet printer counterparts.'"