The one factor that might be hard for them to control is "aging". Sure, the paper will likely have aged the same, but maybe the ink ages differently on paper than on a bottle. (In both potential ways: The ink in the bottle may go bad, or it may age less than on paper.) I am really not qualified to even speculate.
But one thing I want to note is that this scenario does not strike me as too different from "what if I had bought or mined 100 bitcoin while they were still cents each", which would actually have required significantly less effort and even foresight.
I don't think anyone originally thought that comic books for kids sold at newspaper stands would ever become collector's items with such a massive value, so it would probably have been rather bizarre for someone to do what you suggested, especially since the many factors that you mentioned alone mean that some explicit planning for this scenario is likely required for things to actually fall into place that way. I'm eager to be proven wrong, of course.
But one thing I want to note is that this scenario does not strike me as too different from "what if I had bought or mined 100 bitcoin while they were still cents each", which would actually have required significantly less effort and even foresight.
I don't think anyone originally thought that comic books for kids sold at newspaper stands would ever become collector's items with such a massive value, so it would probably have been rather bizarre for someone to do what you suggested, especially since the many factors that you mentioned alone mean that some explicit planning for this scenario is likely required for things to actually fall into place that way. I'm eager to be proven wrong, of course.