I’m sure that’s true, but the questions about things like playback and visual inspection for scratches obviously cannot apply if you have never opened the record. The questions about warping and condition of the packaging still apply.

In particular, shrink-wrap sealed records from the 70s, when exposed to heat from storage or from direct sunlight, can warp the hell out of the record and sleeve as the shrink contracts and expands. I would even say this is a common problem for sealed records of that era.

Warped, most notably. Notoriously bad for Laserdiscs with intact shrink-wrap IIRC.