Fly outside of the US and you see many of those.
#1 Observation decks are still found all around the world. Check out http://www.spotterswiki.com/index.php/Main_Page
#2 Be a frequently flyer in Australia and your baggage tag looks like this
#4 There are a few airlines that offer Chauffeur-drive as part of your business/first-class ticket.
#6 They still exist somewhere, we hardly never use them as we keep our luggage small enough so that we can manage it ourselves
I keep saying that flying is still fun -- if you do it outside of the US and Europe. I'm amazed how well Australia and New Zealand has managed to avoid the western world craze, liquids are still allowed on domestic flights, no scrutiny of papers, and no belt/shoes/hats shows and e.g. NZ has defined in the law the need for security check so that all (most) the domestic flights don't require one.