It was 2 hours drive back to the Apple Store vs 1 hr to an authorized dealer/repair place. They can order any part needed (under warranty) so a new machine may not be necessary.
That being said, if the same thing happens again, or another board goes out I'll press for a different machine.
Can computers "go bad" by just sitting around in a box unused for a year?
I've seen people unbox a 10 year old mac thats been sitting around in a storage unit being opened and running just fine.