Like I said, I was just interested to know what other technologies are directly competing with 3D for one-off builds that can produce the same result (in terms of cost, function, etc.), but have the downside of being slower to produce as suggested by the poster before me.
The slower/faster thing is really more an issue about iteration and time to market for projects. Project costs are a function of overhead--in addition to piece-cost. Overhead is a function of speed and thus project cost is a function of speed. This cost is/can be an order of magnitude larger than the unit-piece-cost. In other words, if you relax the speed constraint you implicitly relax the cost constraint, at least in a normal context. But these tradeoffs (and choices) depend on understanding a project's scope/spec. You are high-light at least one edge case, though: the home DIY, where time is no value but unit cost is paramount. In this case 3D printing might be a good idea, provided your project is suited to such an ouput.
