Its either a terrible idea or brilliant. If its expensive to host, youre going to be rotating around the same few planets who can actually afford to host the galactic government, who will probably be core worlds. But if youre an outer rim world, and you have enough in the bank to host it for a term, you can push your case and (theoretically) have your time in the sun before you go back and collapse on your couch, muttering about your poor wallet.