The market for high-priced computers "saturated" in the mid-nineties when computers started to cost less and less.
I think if Apple's sales were going to flatline because of saturating the market for high-price computers, they'd have already done so. (Which isn't to say they might not flatline or even decline for some other reason, sustaining this kind of growth probably won't last forever).
Apple currently has ~10% PC market share in the world‡ (higher in North America, but let's be conservative).
They still have a long way to go before running out of people to buy their computers.
I think if Apple's sales were going to flatline because of saturating the market for high-price computers, they'd have already done so. (Which isn't to say they might not flatline or even decline for some other reason, sustaining this kind of growth probably won't last forever).
Apple currently has ~10% PC market share in the world‡ (higher in North America, but let's be conservative).
They still have a long way to go before running out of people to buy their computers.
‡ http://osxdaily.com/2011/03/18/mac-market-share-around-the-w...