Apple charges a $505 premium

Since my laptop died, I've been struggling to determine what I should do to replace it. Should I switch from PC to Mac?

The basic Apple MacBook Pro is spec'd as follows: 13-inch screen, 2.3GHz dual-core Intel Core i5 processor, 4GB 1333MHz memory, 320GB 5400rpm hard-disk, Built-in battery (7 hours).

It's possible to spec a Lenovo Thinkpad Edge similarly: 14- or 15-inch screen, 2.66GHz dual-core Intel Core i5 processor, 4 GB 1067MHz memory, 500GB 7200rpm hard-disk, 9 cell 2.8Ah battery (7.2hrs)

The MacBook Pro costs $1,199.00. The ThinkPad Edge costs $694.00. That's a $505 premium. Sure, I can get a regular MacBook for $999, but they use the older generation Intel processors and I want to future-proof my laptop for a little longer.

Beyond the $505 premium, there are other switching costs, such as buying a new copy of Office, $99 at student prices on the Mac, as well as a $29 adapter to be able to project the screen on a monitor. That brings the total up to $633.

Is it worth the switch?