1. If can only fire twice because the sun is used up after both shots.
2. It can't move, it's a goddamn planet, not a spaceship.
3. Too. Damn. Vulnerable.
4. I'm sure the cost of the thing was at least twice it costed to build the two Death Stars.
5. Death Star was better in every way...except for that damn ventilation...
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Actually the fact is it was better just the story made the security in the place shit It couldn't really be destroyed from the outside unless someone got inside and destroyed the manifold or whatever it was that chew baca and Han did It destroyed 4 planets at once or 3 Seems to fire at greater distances with target seeking projectiles It has propulsion to move if I remember correctly