It's a syndrome of Trek, I'm afraid.
Example: the Galaxy class Ent-D. Suppossed to be this big exploration ship. And we're gonna be out for so long, we're bringing the kids with us. Look how often those guys were hanging around at Earth.
DS9 was suppossed to be out on the edge of the frontier, but getting back and forth from Earth was pretty damned easy, or so it seemed.
Even Voyager, which got tossed to the far side of the galaxy, managed to have contact with Earth.