PC sales are diminishing because:
A) Price, read Economy: While that analysis seems viable, the problem is that even though the industry average has maintained an almost zero level of growth for a couple years now, Apple's desktops and laptops (not counting the iPad) have maintained a 15%-30% growth factor for the last five years--far above any competitor for the same form factors.
B) Older PCs, i.e.Windows XP: While I agree that Windows XP was the best version of Windows until 7, any analysis of web usage shows that W2K and XP usage are dropping rapidly--and Win7 isn't balancing that loss completely. This implies that Windows itself is losing market and Ed Bott's own article today confirms that conclusion. Quite literally, Apple, not the iPad alone, is having an effect along with Android's entries into the market.
