At the price where the land is, I prefer a neighbor who doesn't quite respect the limit and will build magnificent things and landscap his land rather than a bad neighbor who respects the limits and will build ugly things, or put cliffs which hides all view. I have seen a lot of land lose all its interest and value, for example a beach by a Linden sea because the neighbor betone the whole landscape with gigantic fgalaises or false starry sky photo screens. .. There are unfortunately in SL the same idiots as in the real world.