When I look at Apple's share price a year ago and today, the price per share has almost doubled. Although the fundamentals of the company have not done the same (revs, income, ebitda). Was the price back then depressed? I don't think so. Have Apple's income prospects since then doubled? Probably not.
Short term I think the price of Apple stock is a little high. The first hiccup that pops up could easily see Apple's stock correct by a fair bit. But I would still buy Apple for the long term (5+ years). If you're buying for the short term I'd suggest you could be buying near the top of the current market.
But I could be wrong!
Disclaimer: I do own AAPL stock.