Nah. Look, if the next iPhone used the same SIM as the current one, this wouldn't even be a question. It's done. You switch them out. What you're saying right now applies to my line not being eligible for the discount price in the first place. However, it does not apply to me not being able to "activate another iPhone on my line". That's garbage, doesn't make any sense. I know for a fact that if I went to the AT&T store and said "hey I used another line, but I want it switched over to mine and yada yada" chances are that'll be handled easily. That's not the point. My point was, I'm under the impression that I could simply handle all of this in the comfort of my own home through itunes during the activation process. So, my question to you was is the SIM in the sealed iPhone box that will be shipped to my house somehow tied to the line I chose to upgrade with online through the AT&T site, and you fail to really give me a clear answer, so f#ck it. I guess I'll find out in a week or two.
EDIT: WTF man, do you read? Haha, I see you added what's below to your comment. F#cking read man, seriously.