What is so terrible about balancing your system ?

It's audiophool lore in my book that you should not buy a piece of equipment to fix whatever you don't find right in your set up. Not all of us caught up in this insanely expensive hobby can afford all the right stuff to get the sound you want the first time around. So if for instance your speakers are a little bright what's wrong with calming them down with a softer piece in the chain. I just did that and it works for me. Seems to me most tube rolling is just that.