Great Write up.

You should probably clarify something, though.

When you say "When you load a page with two dynamic actions, the page will make three requests.", I believe that this is only true if the DA in question performs some type of server-side action or call-back.

You absolutely need to be aware that any call-back to the server spawns a connection. So, pages which use heavy SQL or PL/SQL based DAs can mean heavy connection use.

But fully client side DAs (to hide/show, etc) do not add to the connection requirements.

Pedantic, I know, but worth talking about.