These new tags make reading the code easier. You're completely right, as they are all DIV tags, irrespective of their name. The new properties allow you to section the page easier. If I thought HTML5 was going to be dropped I'd not bother learning it.
You mean the pointless and redundant tags that exist JUST to placate the people who slap extra DIV around things for no reason? Section is flat out redundant to DIV -- which is to DIVide the content into sections, NAV's alleged semantics and accessibility doesn't work in anything, and just adds an element to the dom for no reason on what should probably have just been an attribute on lists, HEADER is pointless nonsense since we already HAVE heading tags, and if you bother using heading tags and horizontal rules properly you don't need header, section, content or footer! But apparenlty with people being too stupid to understand how those are supposed to work and after decades of people not bothering to learn more than ten tags and a quarter the attributes, it's time to throw more tags at it, because that will fix everything...
I was onboard years ago, but I dread to think of myself using an old markup language.
Again part of why I think HTML 5 is undoing ALL of the progress of the past decade with STRICT; We finally started to get people on board for this **** two or three years ago, now let's just crap all over it and take a trip in the wayback machine with Mr. Peabody.