I will comment on Apples strategy, but I just HAVE to say my oppinion about apple...
Using Apple products is like a trip over the north pole... While it last it's hellish and awefull... But when the trip finaly is over, one remember it as a very nice trip with loads of fun.
I have been using iPhone for quite some time now, and I've been a Sysadmin for a big firm with it's own newsdesk running Macs. (but never had one myself).
I think, that one of the reasons why the lower the price on the iPhones is that the more phones they push out, the more people can buy apps via appstore.
Programs for sale via appstore is of no cost to Apple, heck, they just scim the milk of another persons product, claiming 10% or so (don't remember atm, and francly.. don't care)...
With over 1milliard programs sold, they are bound to make good money on AppStore... They could even sell iPhones with a big loss, and still earn good money.
Why they still keep the computers/macbooks high in price... I realy don't know why.. There should be no reason anymore... 10-15 years ago, they where about unmatched on the hardware bit regarding video editing and photo editing.