I think I've traded hoarding old Metros for hoarding old bikes...
I've picked up half a dozen 50 - 75 year-old bikes in the last couple of months... mostly detrius of the baby boomers. Average price: $35.
This is the nicest one in my fleet - a barely-used barn find I paid $45 for that was up in a shed attic for decades. The original gumwall tires hold air and are in surprisingly good shape!
It's actually a English-made Raleigh, and the rear hub is stamped 1973. Canadian Tire contracted with various bike companies for their re-branded Supercycle line of bikes.
The thing that caught my attention (aside from the "white belt, white shoes" 1970's aesthetic!) is the Sturmey-Archer 3-speed hub. I grew up just as the 3-speed era ended, so I wanted to see what they're all about. Quite nice to ride, actually! Around town, a 3-speed is really all you need, and the little "flick" action shifter is much easier to use than a contemporary derailleur style shifter.