personally, i think it behooves every druid to try out the other specs at least some of the time. i liken it to playing diablo 2 as only a fire spec sorc; youre missing out on the experience youd get if you were a lightning or ice sorc, as well as the different playstyles of the other classes.
for instance, im not a huge fan of balance, but i spec it every few months and ***** around on it in a variety of circumstances just so i have a feel of what its like. this makes my resto and feral game better because it allows me to learn alternate methods of dealing with situations. nothing makes you a better resto healer than main healing an instance as a feral, and nothing makes you a better DPS than managing energy and combo points as a resto spec. setting those limiations for yourself and then working around them is the best way to get better at your class and at this game, otherwise you face stagnation, both of yourself and of your appreciation for what the class can do.
