I've extracted a couple messages from a thread on the CHMINF list (read bottom up) talking about ACS pricing policies. Since this is an area we talk about, I thought it would be useful to talk about it ourselves and see if the ACS team wanted to chime in and ultimately respond to this thread.
Another angle I’d be interested is ACS’s perspective on American vs. International negotiations with consortial and individual institutions and better yet the context to why they have moved away from a standard set of subscription practices and instituted new ones.
I found this blog post by Jenica Rogers from SUNY to be interesting.
SUNY Potsdam will not be subscribing to an American Chemical Society online journal package for 2013. We will instead be using a combination of the Royal Society of Chemistry content, ACS single title subscriptions, the ACS backfile, and ScienceDirect from Elsevier** to meet our chemical information needs. We’re doing this because the ACS pricing model is unsustainable for our institution and we were unable to find common ground with the sales team from the ACS. Instead, we explored other options and exercised them. You could do the same if you find yourself in a position similar to ours as ACS standardizes their pricing, and maybe together we can make enough choices to make our voices heard in meaningful ways.