With a budget that big, HBO would be able to theoretically give Ghost its own Game of Thrones spinoff after the final season.
It also has the sci-fi series Westworld, and the breakout hit Big Little Lies, with the latter starting out as a miniseries before getting a second season renewal.
Still, Westworld is currently in the midst of its own second season, and its popularity is nowhere near that of Game of Thrones, and the same goes for the rest of the critically acclaimed slate.
Plus, HBO doesn’t just have Game of Thrones to rely on to carry its brand.