Actually, that prize goes back as far as DC-X (https://en.wikipedia.org/wiki/McDonnell_Douglas_DC-X https://en.wikipedia.org/wiki/McDonnell_Douglas_DC-X), if no

Actually, that prize goes back as far as DC-X (https://en.wikipedia.org/wiki/McDonnell_Douglas_DC-X https://en.wikipedia.org/wiki/McDonnell_Douglas_DC-X), if not farther. Grasshopper and F9R-dev were evolutionary, in that they were larger than what had been done before, not revolutionary. Landing the F9 stage is not even the first "reusable part of an orbital launch system", the Space Shuttle was that. It just wasn't very effective in terms of lowering the cost, which is where F9's true claim of being a game changer is going to be. Let's hope that pans out.