My Delta Unisaw is from the original year, 1938, with a serial number in the 300's, but the original bullet motor has been replaced somewhere along the way. I still use it on most projects. I have several other Delta/Rockwell machines from the 1970's. For the longest time I bought and repaired old machines trying not spend more than I could get back out of them if I had to resell. Now I've given up the more expensive hobby of raising my kids so I've finally bought a couple of new machines. On the handtool side I mostly have bought, restored, and used tools from the 1860's through the 1920's, but likewise have finally broken down and bought a few new items to fill specific gaps. I'm to the point in my mind that I'd rather spend my remaining productive years using the machines and tools rather than rebuilding and restoring them.
"A man must love a thing very much if he not only practices it without any hope of fame or money, but even practices it without any hope of doing it well." —G. K. Chesterton