I'm one anecdotal example of why Macs are sometimes worth the extra cash.
After being fed up with my old Toshiba laptop being crap, and their warranty department refusing to service (apparently bad fan bearings were "wear and tear" items), I splashed out for a top of the line MacBook Pro 2 years ago, and started experiencing problems soon after getting it - first the lid would refuse to close (the latch button got stuck), and then my HDD died. Anyhoo, long story short I sent it in twice, and in total got about 5 major parts replaced.
Rewind to 4 months ago, my machine was really on the fritz, VRAM was shot and would display random colors (textbook memory corruption). Below is everything that happened:
- Called Apple, waited - Gave the agent my info, and she immediately remarked that given my repair history I could qualify for a full replacement, and asked if I would like to proceed.
- Waited - Tier 2 listened to my problem, got me to run some diagnostics to confirm my VRAM was shot, and after a few minutes authorized a full replacement, with a brand spanking new unibody MacBook Pro. I was handed off to a replacement rep via email and the shipping label was sent to me within an hour of hanging up.
- I have some projects in the pipe that I didn't want to put on ice for too long, so I called my rep after I shipped my old laptop off to explain, he sent the new one before even confirming with UPS that my old one was on the way back to Apple.
- That was Friday, it got here Tuesday - across a national border.
On this experience alone, and contrasted with the service I've received from Toshiba and Dell, Apple has basically cemented me as a repeat customer.