It is hard to give price for anything sex related.
For most people, it ain't worth of shit. For collectors, especially ones missing something little they need, it can be valuable. But it's such a niche market, there isn't really steady price level.
I recall recent talk about collecting with old man I met in swimming hall sauna. He told he has 500 vintage + 500 new Lahti city themed post cards in his collection (besides 6000 books etc). He told some of the post cards goes up to 70 euro a piece. And there are 2 rich collectors in Lahti, who collect also these Lahti themed cards. Basically level of interesting cards is now like 20-70 euro, sometimes even more. But think when these 3 guys are out, value of cards suddenly probably drops down to plain recycled paper...
The case with vast majority of XXX related stuff is, that it might be from hard to nearly impossible to find specific vintage publications, but their value in money, is very very cheap. Random 2nd hand shop, random book store, some old porn shop, etc. They'll be just glad some douche spent 5usd for magazine.
So.. price.. it's totally up to you. There can always be people trying to ask a lot, but it's all based on hope of finding that one desperate obsessive collector who will pay 10 times more than anyone else.
