(Double post sorry. However It's got me talking so congrats, I'm kinda hooked! Also, yes this was addressed, but hey, I have words.)
On the negativity surrounding 3D printing (not something I've noticed myself, but then again I tend not to pay attention to mainstream media. Tid bits to stay up to date with important stuff, that's all), there are certain companies crapping themselves over the prospect. Let's take Games Workshop as an example.
Games Workshop make models, it's their bread and butter. Even the rules and worlds they've created are secondary. So can you imagine their reaction to a device that can just make infinite copies of their models for cheap? Not happy. Hell, it's already happening, but the models are not very detailed yet:
-VS-
Yeeeeea. Baby steps folks, baby steps! But with time this technology will improve and we can get higher and higher detail. So GW will panic and probably support the banning of such devices (if that becomes an issue because of the gun thing, however I have heard from several places that such guns are unreliable at best.
).
But hey, you know what they could be doing? Sell the files! Create the original file, charge for it (either a smaller price per model, and make it limited use, or a larger amount of money but unlimited use) and let people use that rather than create knock offs. SIMPLE! Sadly, and this goes for many companies, Games Workshop is a bit behind the times and so this will probably never happen. Hell they've only just started looking at digital books. Charged at the same price as physical ones. Only on the ipad....
.
. 
.