I too am not sure what the advantage of going with an alternator is. I view my KF cars as antiques and hobby cars - they are not driven every day so I don't see the need to update them at all. That's why I leave the generators alone and leave the bias ply tires on them. They're fun cars, not my main form of transportation. Even with that, I drove my all stock '52 HJ to the orphan car show in Sublett, IL last fall (about 400 miles one way) and it did just fine. If I did convert the car to 12 volts then yes I'd go with an alternator but if I want modern transportation... well that's why I have my new Focus. The old generators can be rebuilt at any Automotive Electric shop and it's not that expensive, and best of all, you just hook it back up when it's done - no rewiring or anything.