You called??Mostly agree with your rant, but I can think of one (relatively) rare reason to have $20s.
If you have a large set of one type of chip (say, THCs) intended for both cash and tourneys, a $20 could be used for cash and a T25 for the tourney.
But then you could just make two different 25s and achieve the same thing I guess.
Also if the cash game needs a $100 chip, then you need two different 100s. Which is why I recommend making $50 chips instead.
***KIDDING, KIDDING, JEEZ LOUISE ***