Can anyone explain to me (who is very familiar with how Gmail works) why when you label a email from your inbox to go to another location within your mail account, why it keeps the original message in the inbox?  If I'm moving/labeling a message then I want it to go where I've moved/labeled it, I don't want a copy of it staying in my inbox.  I feel this defeats the entire purpose of catagorizing an email to begin with.  Is there some kind of setting where I can make it so it doesn't keep a copy where it originated from or not?

I remember trying Gmail years back and I remember I didn't like it.  Now I think I know why that was...