But Vince...does it really apply to Bronze anymore? Pretty much all publishers and genres from the Age has their collectors, and speculators, these days. As the market has matured there are many collectors looking for exactly what you're implying. What's the next desired avenue and let me get on-board before the masses follow? I'm not sure that the ship hasn't sailed on the whole Age.
Personally, I think the Bronze Age is tapped out in this regard. Archies? The collectors have always been there. Same with Harveys. Charlton used to be a comfortable area until people realized how rare true high grade copies were before CGC. Gold Keys? Was before the Random House file copies in multiples hit the market...
Again, if it has a 20-35 cent price on the cover, collectors, even if they're not into the genre/publishers, are on board if the issue is high grade. Frankly, the days of ignorance concerning Bronze is over...
Jim