Joshua 13-19: Allotment

I read these chapters that detail the allotment of the land between the twelve tribes and wonder 'Why are some of the portions so small, their details so insignificant?'  Did some of the tribes not care, or did they only care about enough to meet their immediate needs? 

It's interesting that an entire chapter is devoted to describing the land allotted to Judah, but only a short paragraph describes the allotment for some of the other tribes.  Was it fore-known that Judah would remain faithful to God for a much longer period than the other tribes; that Bethlehem in Judea would play a critical role, that the Lion of Judah would be our only hope: 

2010 Post - Joshua 13-19:  Dividing the Land