In September of 1962, I bought twelve comic books. At 12c each, I spent $1.44, which is less than half of what one comic book costs today. In fact, a 32-page comic book today costs twenty-five times as much as it did fifty years ago.
Back then, most comic books had three different stories in them, but if they had only one, it was often billed as "a three-part novel." Today it is rare to find a comic book with a single complete story in an issue and the amount of plot in one of those three-part novels would be fodder for a year or more of issues today.