Yes it is worth it, think of it this way: If you have it apple is obligated to fix it unless it is accidental damage (you drop it, get it wet, etc.). If you don't have it then you will have to pay to get it fixed (logic boards, displays, superdrives, and hard drives, all are very expensive parts). So it is likely that the apple care can pay for itself with just being sent back once. If you get it and you don't need it, whats the worse that can happen, you spent $300 and you had the piece of mind, if you don't get it and your computer dies, and its going to cost $1200 to fix, then you are going to wish that you had purchased apple care. I say go for it, you might regret not getting in the future.