I go back and forth on this one. On one hand, it does not really add anything and for a long time I did not really use it. There isn't much point without an appearance system (or a more crucial one). ...
I never have enough!! It makes builds looks lived in. But I can’t use too much of it because it makes the game laggy :( And when I make a build to share on the Gallery I make sure it’s not too cluttered, (and I play test them, unless I forget).