Thats one of the things that gets me to be honest, plug ins going up down the pan, but no ones making you upgrade.... If your on platinum then its free, so no biggie there, just wait till the plug ins are updated then install, and if your shelling out your cash for upgrades that you then cant use plug ins for, and dont like reconfiging, for "little" (as i'm guessing you mean) improvements then maybe youve been on the Autodesk Coolade too.

Dont upgrade for upgradings sake, if everythings fine in your pipeline then dont mess with it unless you need the new features/imporvements.