I would ask everyone to please keep the topic and tone to the reason I started the topic, which simply came from having memories of my first bike helmet while touring and how they have improved so much.
If you have other contributions, feel free to add.
I would add that the strap systems, and especially the rear "cradle with tensioning ratchet" systems are great for both holding a helmet on properly compared to the older systems, and especially for quick easy changes of adding or removing warm head gear depending on the temps--which I do a lot in the beginning and end of season riding.
The manufacturers really have to come up with great adjustable strap systems compared to the older stuff.