You can still analyze the trade-offs of your hammer / rock choice, e.g. Hammer pro’s: very efficient Hammer cons: costs money, only available in industrialize

You can still analyze the trade-offs of your hammer / rock choice, e.g. Hammer pro’s: very efficient Hammer cons: costs money, only available in industrialized societies Rock pro’s: ubiquitous and free Rock cons: inefficient The point is that in tech, there is no choice which has only pros, and no choice which has only cons.