Well maintained and you seldom have problems. The points are a "wear item" so need fairly regular attention. If you have a Concours show piece, then keep it as it came off the factory floor. But then you do not drive it 100 miles per day. Those other well restored vehicles I would be inclined to install an electronic ignition. You can get a Pertronix that is almost invisible or use the Chrysler parts from a picknpull. The Chrysler system gave the least problems of them all. The GM main problem was the wires flexing going to the pickup plate that flexed as the vaccum advance operated. Fords main problem was the box on the inner fender. Can not understand why that was such a piece of crap, being mounted on the inner fender away from engine heat. The Mopar mounted on the firewall at the back of the engine. Very occasionally a pickup or module would fail.