Eh... some of the Transformers comics that I collected in the 80s still have their price stickers on them. Adds to the charm IMHO. What I found interesting was how the comics I bought from newsagents* had bar codes on them, but later comics that I bought from comic book stores had additional artwork in those rectangles.

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*it wasn't until the 90s that I discovered comic book stores - did they exist in Australia before then?