Just like the last sentence of your OP truly made a meaningful and relevant point to it all--just because you started the thread doesn't in any way imply anything about validity or importance of what you might be saying as you are just another poster on an internet forum, just like the rest of us.
You could have saved yourself the trouble by not bothering with that unnecessary statement and probably not even mentioning the drop given that you wouldn't attribute anything to it even if there was something to attribute to it. Doesn't quite seem like you were looking for actual answers (even though a number of possibilities provided) and instead wanted to try to make some point about Apple, basically just because it seems.