Interesting that the TI-84 is mentioned so much. I am pretty sure this article is making a big deal out of nothing. I think this is a case of journalists reading "graphing calculator" and assuming the 84 is being used. SAT's allow CAS calculators, the Inspire is a pretty impressive specialist calculator and makes algebraic expressions incredibly easy. Any sensible student should be taking one into the exam or they're just putting themselves at a disadvantage. I can't speak for what calculator students ARE buying, but they are allowed to buy and use far better ones, the 84 might be overpriced but just don't buy it. You wouldn't care if the Apple II is currently overpriced, no one should be using one, so it shouldn't be a big deal that the 84 is overpriced, just move on.