Options, my friend.
......
They all respond a little different, have a different voice and output, and have different strong aspects. When I'm writing ideas, I'll often play all of them and see where they take me.
i do this all the time. its a great way to use all my basses. another thing i like to do is use different basses for different projects - ie i have two i like to use with my originals, another i like for my tribute band, another i like for my covers band, one i like to play at home. also i like the different things i can do with them - my passive fender sounds different from my active peavey, sounds different from my 5 string, sounds different from my acoustic...ect ect ect.
to each their own i supose. i have 6 all together, and they all get regular play. love them all for different reasons.

