Many fans ignored that there was a poster inside the cover of "Abraxas" (Santana), in 1970, right?

I bought Dark Side when I was a kid in the early 80's. I put the posters on my bedroom wall and sadly they disappeared sometime before I finished high school.

 

I took the Abraxas poster down after a few years. It was kind of 'meh' looking and my interest in Santana waned after III

 

I usually left posters etc. inside the album covers. If I wanted to hang one I'd find a used copy of the album and use that one. I also preferred other kinds of posters hanging on my wall; motorcycles, scenery, and for a couple years some 'black light' posters.