Why Apple chose to upgrade the MacBook lineup

Yesterday, Apple announced that it was upgrading many of the components (processor, hard drive, video card, etc.) in its MacBook and MacBook Pro line of laptops. After the launch of the MacBook Air in January, many hoped that Apple would announce a completely revamped MacBook lineup. Many in the blogosphere are disappointed that Apple didn't do more.

My friend and consumer electronics veteran Jeremy Toeman takes a look at why Apple chose to go the upgrade route rather than the revamp route.

Now that the MacBook line has beefier specs, would you consider switching from a PC? If you already own a MacBook, do these upgrades make you want to pick one up?