Space flight should be privatitized with companies allowed to mine other planets. Manned space flight should be paid for by those with an interest in it, and by those who will gain from it .
You make two points which are contradictory...unless you are against ALL spaceflight altogether Manned and Unmanned alike. The latter 'Voyager' space shots were unmanned. As for manned, you acknowledge that Hubble did some good, which said good would not be happening at all without the manned service missions to upgrade and repair it. And don't forget the Apollo missions. Think how that made our nation feel. Was that worth it? I think it was.