Apple has fallen so drastically because the 4Q earnings report fell within (but on the low end of) extremely lofty projections, rather than exceeding them, and because the 1Q projections were lower than expected. But if you look at the raw numbers, you would still be hard-pressed to find a stronger buy, even if this stock were at $550. I agree with those who say "wait to see - it didn't hold at $450 and could drop even lower" - but I also say you should get in on it. There are no numbers to support such a steep decline; the only thing to support such a steep decline is fear and following the crowd!
until apple shows you its got things great coming out its no better than a microsoft as a stock. i been screaming this for awhile on here though. i however shorted the S&P feeling so goes apple so goes the S&P so i won't be bragging and saying i called it. my problem is i always felt you had to have big balls to short or bounce a stock like this and i know my limits of risk.
Take your investing capital divide into five. Take that one fifth piece and divide into three. With that buy some aapl now, buy some at 420 and some at 385 if need be. Hard stop @$340.
Or perhaps learn how to read price action and when it looks like it's finally ready to turn use a better portion of your capital with a fixed stop and no ambiguity. Scaling in is evidence of lacking a good entry method.