Not disputing your dilemma but SS was never 13¢. No comics were.
They were 10¢ from the 1930s through about 1962. Then they went up to 12¢
SS actually launched as 25¢ double sized book for the first 7 issues. It was a “premium” title but that hurt sales. Then went down to standard size for 15¢ which was the avg price by the late 60s.
They pretty much just went up in 5¢ increments through the 70s and most of the 80s. Once it hit 75¢ they started jumping by 25¢ until they hit $2.99 in the 00s.
Current comics average 3.99-6.99.