I'm holding onto mine. They have lots of cash, no debt, and strong sales/market share. I believe so me of the new products will go out around the holidays so I think it will still go up some more.
This is sort or irrelevant to the topic at hand (whether a stock split will affect market cap), but I'll be contrary and make the following comments:
1) Is a huge cash stockpile a good thing? This often means that a company is struggling to find ways to invest it's capital and that growth prospects might be slim.
2) No debt? Apple has issued $29 billion bonds in the last year, and while net leverage is still basically 0, this could just be the beginning if shareholder activists get their way. In fact, as a stock holder, you might be better off if AAPL starts to level dramatically, especially when they're borrowing at close to the same level as the US Treasury.
3) Apple will come out with new products, but if recent past is prologue, they're not going to be very interesting. At what point do people tire of paying an enormous premium for Apple products when they can get something nearly as good for 1/3 of the price?
4) None of these observations are value predictive. They'd all be true whether AAPL stock was at $60, $600, or $6,000. Why do you think $600 is the wrong price and $800 (or whatever) is the right price?
I don't mean to pick on MissPeach specifically, but it's common for retail investors to parrot some facts about a company's balance sheet, do some hand waving about future business prospects, and then make a busy/sell/hold recommendation. Do they think that literally every other market participant doesn't have the same basic information?
N.B. I generally think owning individual stocks is harmless provided it's done in the context of a disciplined and diversified portfolio and have no view on AAPL specifically.