Queen presskits -- rare or not?

This is probably a Martin question, but I'll go ahead and ask anyway.
Because they were solely promotional items, how much are presskits (for all of the Queen albums, original releases) worth today? I have several and added one to my collection today. I was at our local used record emporium (The Great Escape) in Nashville this afternoon looking at some Queen (vinyl) albums. I came across a copy (complete with drill-hole) of Hot Space that had "presskit inside" for a mere $9.99. I peeked inside and there it was: the whole presskit (with 8 x 10" glossy that is a pose I've never seen published anywhere), though the vinyl was in so-so shape. I asked the manager of the store if he would consider selling the presskit only, and he agreed -- for a mere $3.99! (God bless him!)
So, if anyone has any information on the worth of any Queen presskit, I would most appreciate it!

It is a worth a damn site more more as a "complete package" (including LP) - so go back and get it at once!

That's a bit like Jake LaMotta smashing the World (Middle-weight?) belt to get at the diamonds! (Raging Bull reference there!)

did the presskit have backstage pass ??...

The record at Great Escape was a regular release; I've had the promotional copy since 1980 (white label) minus the drill-hole, so the presskit will have a safe and secure new home there!

Sorry, Alex, no backstage pass! :-)