The last Mac I owned was the first Intel MacBook. It was junk. The trim peeled off, the ethernet port wouldn't connect reliably unless you held the cable just right, the keyboard had keys that behaved funky and then the CD drive stopped working.
Worse, was taking it into Apple under warranty and finding out it'd be gone a 1-2 weeks to be fixed. Are you kidding me? 2 weeks for that? I *might* give you 24 hours if you really needed it but I would expect that kind of parts swap could be done in 2 hours or less.
Interestingly, I recently retired my 1st gen MacBook after nine years of daily use. The CD drive stopped working, and I had the case replaced once under warranty. The battery no longer holds a charge for more than 20 minutes, but plugged into a power cord it was still working well. I just wanted something faster.