We've been mining this old pipe organ/solar products/repository for a lot of old things for almost a year now. Soon it will be razed to make way for more condos like the ones across the street.
After spending a lot of time there you start to notice little signs of the workers and people that inhabited it since the 1860's. In one of the basements someone cut out a Franklin Roosevelt and Harry Truman campaign photo and nailed it above an old drill press. Next to that a Vargas pin up was tacked above a long work bench. The more you get tuned in to it the more you see and find.
That's what it's all about for me. Less than six degrees of separation from this old stuff now to the original owners. When Steph and I find old cool stuff or I build something from reclaimed materials I'm trying to keep what they did going for future generations.