In my state (Florida), if you score high enough on the SAT/ACT, you can be exempt from the ELA state assessment at the end of the year. Although this is a year away, do you think it would be worth it?
A high SAT/ACT score is helpful no matter what - skipping the state test is just an added bonus. So I’d say that yes, it is worth it. A higher SAT/ACT score gives you more options for college, and nobody likes taking those state standardized tests. So taking the SAT/ACT is probably harder, especially because it includes math too, but having a high score is worth it (colleges don’t look at state tests anyway, at least in my state, so it’s not like a high score on that would be worth as much). Good luck!
The score required is a 430 for the Reading and Writing for the SAT. That is equivalent to getting at most a 38.333% as a heuristic (calculated with all questions being equal difficulty, in reality easy questions are counted more, so it is even easier than what I said). That is nothing since there is no penalty for wrong answers on the SAT.