I think the game would look nicer if the blue grid lines in sector space were removed, or at least give us a display option with that sort of setting. I just think it's cheesy looking and detracts from the experience of flying through space. I realize it's probably there to denote the playable boundary but that can be done in a less unattractive way (i.e. popup dialogue that you've hit bottom).
Just my $.02.
0