No relationship to quality. In the end, it is the individual pressing. In the "golden years", many labels had sufficient quality problems due to making runs in the millions, because popular artists sold to that level. I see this with lots of popular titles. Their answer to quality control was that the end user simply returned these at POS. So you have an equal chance picking up problematic vinyl over pristine copies.
Veracity of albums for sale being "sealed"?
Just wanted your opinions on whether or not the high prices of collectable albums should be so much higher for sealed versus unsealed albums. Could some of these be recently sealed after having been used, by a person with access to a wrapping machine? And how would the prosepctive buyer know? Thanks.