I find investing fascinating..... What I find even more fascinating is how much panic you can create so easily that causes people to start dumping shares. I am not an economist or mathematician but up and downs are completely inevitable. You an't sustain significant growth indefinitely. Since most of apple's revenue comes from the iPhone it had to happen sooner or later because there are only so many people with smart phones and let's be honest, the update from year to year is so insignificant that it just doest warrant you to get out and grab a new one. Except of course for the enthusiasts.... I'm actually hoping it will slip more so I can buy more of it because it will be back. Every few years there is a significant breakthrough in technology that pushes it back up.
Your post contradicts itself.
First you question the "panic" phenomena, noting inevitable ups and downs and unsustainability of growth as truth.
Next you note that the bulk of Apple's revenue comes from the iPhone, and that it's basically a mature product (one excuse Apple has given for the sales decline) and because of that consumers don't feel the need to upgrade as often as in the past.
But then you say you will buy more on the dip based on the potential profits for no specific future Apple product.
So you effectively criticize people for getting out,
not in the panic situation you initially question, but, using logic and reason based on the reality (you acknowledge) of Apple's #1 money maker becoming mature and Apple's revenue growth uncertain.
Then you conclude that you will buy into AAPL (based on emotion?) if it goes lower -- you don't say what is going to propel Apple revenue in the future, and admit the iPhone may have peaked in high growth and will meander from here on out.
Bottomline here: people exiting AAPL are not panicking. Apple, and TC simply have not made the case to investors on why Apple's growth will resume and they should stick around. Investments in AAPL were based on the iPhone as Apple has no other big money maker. If Apple's growth days are truly over then what is the point having money in AAPL? Seems to me making the decision to exit, take some gains, rather than risk capital is perfectly rationale and well reasoned, the opposite of panic.