The finale of this show is like a concert you are dying to see: you can't wait for it, but a big part of you is gonna be sad when it's over.
So true.
This is going to be the saddest show ending ever, regardless how it plays out. Just the fact that it's over is devastating. One part of me doesn't want it to end because it's so good. The other part of me is glad it's ending because it's ending on the show's directors terms and not on a network's (If that makes sense). The show is so good because of a properly planned ending.
For example, I loved the office. I watched that from the very first episode to the last (on TV, not Netflix). I had so much time invested in that show, but I wanted it to end so badly. Don't get me wrong, I still praise it, but that show got milked for so long, that there was no really story left anywhere. It finally got canned and a really terrible ending was forced. Had they wrapped the show up when Michael left, or shortly after, the show would have been much better as a whole. I feel like Lost could have been done perfectly in four slightly longer seasons, but that got stretched to the point where (IMO) it just started to suck. Then there are the shows I loved that didn't get the opportunity to have a proper ending; Terra Nova, FireFly, Freaks and Geeks, Party Down, etc...
RIP Breaking Bad (soon). You done good.