I think you're all correct. Some parts will be more expensive to make, and some parts/models will be produced in lower quantities and subject to economies of scale. This will be driven by demand, and they'll not produce huge quantities of tools that aren't top sellers just to keep the prices down.When it gets to retail, we often see a lot of bargains, and the chances are they are slower moving stock for a particular retailer. You don't drop prices on items that are selling well at the full listed price. I think price differences between models will be more to do with this, than with actually increasing the prices of certain models, with many retailers anyway. There's too much competition to bump prices significantly unless you're selling something exclusive.Overall, still the best value you can buy for a pocket tool, even on the higher price models. Great functionality, the most consistent levels of top level quality, and a lifetime warranty on top. In an era when most things are built to last a year or so before you have to buy a new one, they give you a product that will last for decades at a very reasonable price.
They also make the SwissChamp and the Huntsman fully automatic in Ibach (The only "human" part is the QC afterwards). The rest of the models are still put together by hand.