people seem to exagerate HBO's love for this show, if the producers were as free as people think we would have seen ghost every episode.
Obviously there's a bit of a limit and some give and take here. We've got Dragon CG every episode. The show's still making mountains of money. I don't think it's something pulled out of my asshole to think HBO would love the show to last a few more seasons. Like, what clue is there that they really would want it to end? It's their biggest moneymaker. It's the biggest show in the world right now.
D&D wanted only 7 seasons, but the HBO programming president himself wanted 10 seasons:
We'll have an honest conversation that explores all possible avenues. If they weren't comfortable going beyond seven seasons, I trust them implicitly and trust that's the right decisionas horrifying as that is to me. What I'm not going to do is have a show continue past where the creators believe where they feel they've finished with the story.
The reason we sat at 13 episodes was a compromise between them. That means the showrunners originally wanted this shit to go even faster somehow.