I agree, the vintage Ludwigs do have a certain sound that many love, but I've had a few that weren't so good.
These new Club Dates have basically the same shells minus the re-rings, but because the rounded edges are more precise and the quality control has greatly improved, they tend to have a better tuning range and resonant more than their older brothers.
My facination with 60's Ludwigs has more to do with the time period, that was a great decade for music that will never be duplicated.