So I bought my MBP 13" on Monday and declined applecare when I purchased my computer. I read that I can buy applecare anytime during the first year...is this correct? If so, is it worth paying the $1XX for it? (Can't remember actual cost with student discount) What exactly does it cover? If I buy it the last day of the 1-yr time period, would the coverage last longer than say if I bought it today? Thanks!