I think that this was a perfect end to an awesome show throughout all of the series it shows JD trying to get some recognition off Dr Cox and this time he finally does and it really shows how Dr Cox feels about JD. Janitor and JD finally lay their grudge to rest and janitor reveals his name (or does he).
The final scene is very moving as JD begins to think what may happen with his life after leaving Sacred Heart. Turk and JD carry on doing their emotional hugs. Carla tells JD why she looked after him for the whole 8 years and JD remembers everybody he ever met at Sacred Heart.