Right...it's hard to establish that you are coming here for something other then school....You'll probably have to get married to your boyfriend
I doubt that. If you are a dependent on your parents who live in another state, then you won't get residency. However, if you live in the state for 12 months (as proven by your driver's license) and can prove (via summer work) that you are contributing to the tax base of the state and file AZ income tax returns, you will get residency. It's only an issue if you are a dependent. Since AZ universities rely on income taxes for the majority of thier funding, they just want proof that you have put in your tax "dues".
You would have to do this without attending school according to state guidelines....
the difference really isn't that big, but there is a difference. I believe ASU's class is slightly larger which would lead to a little more competition for a job.