Boats, cars, construction.
In the old day, if we built a boat from wood it was likely because we couldn't afford to buy one. Today some recreational kayaks and canoes are dirt cheap, but functional. At over $180 per sheet of 1/2' marine plywood, and the cost of fasteners, etc it is discouraging to build a wood boat. (and certainly not to save money!)
If I have an objective, it is to try to accomplish a quality construction using acceptable substitute materials. More on this later.