Hmm...., to think that in the 1950’s US post office stamps were 5 cents and airmail was 7 cents. News papers cost 5 cents, and comic books a dime.
In the early 50s they were 3 Cents.
And the average income was $3500 per year
Our local paper has a cover price of $1.
Comic books, depending on the book, are about $2.
At $.55, postage is still comparatively cheap.