I have some old Disstons, too - only they are all handsaws!
As for the old days, I am greatly appreciative of how easy we have it today. Simple things like anti-kickback design on chains, for example, have come a long way in my life time. I am put in mind of safe tool design and operation due to my great-grandfather, who sawed off his left arm in a sawmill accident, back in the 1800's. He lived, in fact lived to a ripe old age, which speaks volumes on what a tough old bird he was. Whenever I start to saw something I take time to reflect on whether or not it is the right way to approach the problem, and whether or not it is safe.
Back to work now, I have to try not to strain my back when I reach for the mouse I dropped...