Is our galaxy really that thin? Seems hard to believe that 10,000 AU wouldn’t just put the telescope only infinitesimally higher, still deep inside the galactic cloud of stars.
what that much displacement give you is a chance to look over the top of the thickest part of the smog and catch a clearer view of the core.
Ever fly out of LAX? Near the top of the smog a few hundred feet make all the difference in the world!
Smarter folks can give you a better answer as to how much visibility improvement, and also whether we get more bang for the buck going UP or DOWN out of the galactic plane...