My Airport Express died in the middle of a gig a couple of weeks ago. It was still under warranty and became the first Apple product I've owned to die while in warranty. Apple replaced it at their Apple Store. So, they can die, but I have a fair number of Apple products, so this is unusual.
Actually while I was researching the DL I read a mountain of reviews and forum posts all over the internet and something I found odd was the seemingly more than average reports of airport express failures.
I dig apple gear and have had a mostly trouble free run, so far.
But reading relatively regular reports of airport failures kinda put me off them a bit.
We have a Billion VoIP router in our house, and the D-link in my shed.
The Billion has been 100% reliable for about 7 years.
The D-link is a bit cantankerous but has never completely failed.
Anyway, I'll see how it pans out over the next few weeks