I have seen, just in the past few years, the price of systems that "lay up" materials in a tank to form an object drop by an order of magnitude.

They are now called "3D printers," and can be had on the low end for about $25,000, which is what color laser printers ran when they first came out. I can get a color laser printer now for less than $500. Of course, the cartridges are another matter. ;)

Consumables for these things run about $1 - $2 per cubic inch of model. Not cheap, but almost free compared to what such models cost in a normal machine or molding shop.

Add to this mix the story about using ink jet technology to "print" actual biological structures, and we are in for interesting times. (I believe the article you linked to also mentions this technique in one of the links.)