Anyone else keep an eye open for old tools? I picked up an OLD circular saw for $20

I collect mountains of old everything. Just picked up a pile of saws, drills, grinders, knives, kitchen stuff. I have bikes, hand plows and cultivators, trains, slot cars, speed stuff, 2 and 4 cycle oil, hand tools, slot cars, cars, matchbooks, lighters, kegs and barrels, lawn mowers. I need to have a sale, but can't seem to part with any of it. I even still have my old surrey.