Here’s an informative and sobering assessment of employing COUNTER (via SUSHI or not) stats for accurately measuring cost per use at the platform/database/journal level… It’s not a pretty picture.

Welker, J. (2012). Counting on COUNTER: The current state of e-resource usage data in libraries. Computers in Libraries, 32(9). Retrieved from http://www.infotoday.com/cilmag/nov12/Welker–Counting-on-COUNTER.shtml.

Thanks to Roland for sending this my way.