Thanks for the details on your requirements and your need for log-based analysis.
I appreciate your position on hosted solution versus a locally installed solution, and I understand your preference for log-based data collection. I would like to point out that much (if not all) of the tracking you mention can be accomplished with tag-based systems. This of course is only true when certain conditions are met (i.e. cookies are enabled, image requests can fire, etc). You provide a good view in your response of the conditions that must be met.
In a previous role I worked with teams dedicated to analyzing internal sites. They used usernames and other methods to identify Intranet users. For those teams tag-based tracking was more advantageous than log-based tracking. What works well for some might not even meet the minimum bar for others.
The scenarios you mention in your reply fall outside of the marketing scenarios we target with adCenter Analytics. Although this is currently the case I have noted your feedback and strong support for log-based, locally installed analytics.
Thanks,
-D
Darrin Wood | Sr. Product Manager, Analytics
Microsoft Advertiser & Publisher Solutions