I liked your article. I found something similar on Pragmatic works website. Just posting here as an added material 🙂 The link is http://pragmaticworks.com/Products/Business-Intelligence/BIxPress/ssis-logging-auditing-monitoring.aspx.

The article talks about 2 types of the most implemented methods of logging. Then, it gives preview of the tool (not free) which would help in logging multiple packages and different attributes of the packages.

I am posting here just FYI.