You know when something is made well. You can literally feel it. We learn early in life that certain thin materials are fragile, while some others that are thicker, are stronger. Later on we learn that gold, one of the most valuable elements in the world, has a specific gravity of 19.32.  Did you know that the cast iron skillet in your cupboard has a specific gravity of only 7.87? [It's amazing to think about that skillet weighing almost two and a half times what it does now.]  The density of an object is noticeable to the hand.  Feeling the momentum of that object when we weigh it in our hands and the amount of effort it takes to lift something that is small in volume, but heavy in mass, is something that is striking to the brain.  It is not common for us to interact with these objects, especially now, when most things are made to be as cheaply as possible, sparing any and all overhead costs to deliver a product with high profit margins. Double points if it breaks in a year and the consumer has to buy another, because it cannot be fixed (if they even tried to fix it).  Does this mean titanium has no place in the world of quality objects? That would certainly be backwards thinking; no, it absolutely holds it's place.  It's just not what I'm about. Good thing I'm not an aerospace engineer.