This thread is hilarious!
I guess Mark Derry has never tried Nike shoes with air soles. I took my Air Max 180s with me on a skiing holiday so I could run and they reacted VERY badly to the altitude...yes, the bloody things ruptured. And I had temporarily mislaid the receipt, so the people at Niketown were unsympathetic albeit rather impressed at the huge distorted bulges in the air sole. They were only a month old!
I found the receipt about two months later. Typical.
Lessons to be learned from this:
- WARNING: Do not take Nike shoes to altitude.
- Clearly the Kenyans do not run in Nike shoes with air technology.
- Nike shoes with air technology are therefore not for serious runners*.
I run in Saucony at the moment 
....
* actually I still do rotate wearing Nike Air Max 180s. Because they are bouncy and I like them. But damn Nike all the same.