Collectors don't care, they just want a complete set of whatever they collect. Speculators care, because they want the best possible price.

Look into the idiotic concept of slabbing and grading comic books, which makes them unreadable, destroying the literal function they were created for, but somehow preserving their "value".

Collectors aren't the people that care about that, they're just trying to have things complete for OCD/sentimentality/preservation reasons.