3) You have doubles or even triples of many of the same things: thus showing off.
Sorry, Phoenix my friend, but I must disagree. Every cymbal has it's own voice, and therefore it's own use in any given musical situation. For example, my current Saluda cymbal setup includes three 18" Diamond series crashes; (2) in medium weight and (1) in heavy or "rock" weight. The pair of mediums sound completely different, even though they are from the same casting and same line. So I must beg to differ with ya there.