I always thought that was a missed opportunity in Voyager. As they neared the galactic center, they should have headed for the Cytherian homeworld, in hopes of a quick trip home. Heck, when they re-established contact with Earth via the Pathfinder Project, Reg should have thought of it and mentioned it to them. They had the records of their travels in the Delta quadrant to trade to the Cytherians for their passage. The writers dropped the ball ignoring this bit of continuity, even if they didn't want to use that easy ending to the series. Could have at least given some hope and purpose to a story arc as they searched for the Cytherians.
Well, "near" is a relative term. The central bulge is still over 10,000 light-years wide. Even Voyager's closest approach to the central region could've still put it years away from wherever the Cytherian homeworld was.