As I remember it from the mid-1970's to the 90's, this was the way things were done here. Pricetags or inventory identification numbers were put directly onto the covers. CD's weren't shrinkwrapped either and the CD's themselves were also kept in drawers under the desk, while a tiny sticker with the handwritten inventory identification number was put inside the tray/hub-inlay. At least this was the method used in those old shops that also sold/leased HiFi's, TV's and VCR's and that had been around for decades. I can't honestly say how it was done at the larger music only shops that came around during the late 80's. They could have had another approach for easying the workload on their personnel. So what I'm saying here could very well be half the truth, since being a poor youngster I didn't buy much back then. Maybe older members from this area of Nothern Europe have another tale to tell. But the good thing is: I actually like finding LP's, singles and CD's in second hand stores with their original price tags still attached.