Dude, you just don't seem to understand how little time two hours really is. Just because your plan is to go to an art school with portfolio-based admissions doesn't mean you shouldn't put effort into the SAT. Sometimes circumstances change. Trust me, you'll be better off taking it and actually legitimately trying to succeed at it than blowing it off. The SAT is not something to worry about per se, but it is something you want to take some time to study for. That said, I just find it amusing that you're so worried about two hours of your time. I get 3-5 hours of homework every night. So unless you're taking all Honors or AP classes and need the time to do homework for those classes, two hours is nothing.