Do YOu think the number of copies CEX has of a movie
 

indicates how good the movie is?

I tried to find the Dark Knight trilogy boxset in there, but they didn't have it. The only film out of them they had was Begins. What I took from that was everyone who has the boxset wants to keep hold of it because it's good, or passed it on to friends/family.

There were loads of copies of Captain Marvel. Does this mean it sucks, and no-one wants to keep it?
^ I don't actually dislike that movie, it's fine, if I was channel hopping I might stop to watch it, but I don't really wanna give it my shelf space xD

Captain Marvel is a recent movie though so Cex are bound to have more stock than that of an older one.

I've started buying from music magpie recently and they are really decent.

Yes it does seem like there's a correlation. Like you say if a movie is that good no-one will part with it.

Probably means that nobody is hardly selling DVDs to them nowadays, they give you about a penny for a dvd. A waste of time taking them in.

I've seen a few dark knight dvds in cex so it means nothing.