Do you typically build the max number of econ starbases around your worlds?

Do you typically build the max number of econ starbases around  your worlds? In my current game (large map, crippling diff, TA) I have gotten lucky and have 5 planets within starbase range, in another sector I have 3 in starbase range. I am tempted to just keep cranking out constructors and building economy bases, I don't see a diminishing return ...