I would say if you don't feel a clear need for the throne, you're better off not getting it.
For me, the throne is a part of the character, yes there were times he stood, including the Sith lightning scene, but when I think of the Emperor in Jedi, I think of the puppet master sitting idly and pulling strings with Vader and Luke and watching it unfold, and ultimately I may have the 3 posed together so the throne is part of that all. To this day, I still have my Hasbro throne and Emperor from the Vader/Luke/Emperor 3-pack.
For me, the throne is a part of the character, yes there were times he stood, including the Sith lightning scene, but when I think of the Emperor in Jedi, I think of the puppet master sitting idly and pulling strings with Vader and Luke and watching it unfold, and ultimately I may have the 3 posed together so the throne is part of that all. To this day, I still have my Hasbro throne and Emperor from the Vader/Luke/Emperor 3-pack.