Those are all valid points, but, were Camco drums really so much better than Ludwig or Rogers to be so sought after now? Look, I'm just trying to make sense out of something that doesn't make sense. I don't believe something just because someone says it or because a certain drum sells for more than another. I'm just going by what I've learned from owning and playing kits from most of the big companies. Besides hardware, I see no big difference between any of them. And when I say difference, I don't mean to imply that they all sound the same, I mean, they all sound great, none better than the other. That's what I've learned after many years of playing vintage drums.
I think your on dodgy ground here with the factional fans of brands, which I don't buy into either. In all honesty examples of all these brands from that time can represent the worst and the best in each. It seems Rogers had a handle on Quality control. Ludwig is probably the most unreliable because of the Ringo factory rush. I know I would be hard pressed to pick one of any of these brands with the best example of their kits in front of me. They would all be magical. That's my idea of the ultimate vintage drum collection.
That said, I once did a Jazz gig on a Camco that a mate lent me and it was absolutely gorgeous to play.