Library Journal does a periodicals price survey, or at least used to. 
Here's 2007
http://www.libraryjournal.com/article/CA6431958.html

At the end of the article is some historical data.

kc

Nate Vack wrote:
> OK, here's one for y'all,
>
> Anyone know of a source of historical journal value data? I've seen
> the "OMG Article Costs Will Bury Libraries" graph a million times, but
> I've only ever seen spotty data points for cost/article or
> cost/character.
>
> Anyone know if that data exists, and where it might be found?
>
> Thanks,
> -Nate
>
>
>   


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