This is no different than the car debates that go on. Someone will say they bought car "X", and had nothing but problems, worse car ever made. Meanwhile 10,000 other people own the same car, and love it, and never have issues. Most probably boils down to dumb users...
Crap.
LOTS if people are having the WiFi drop problem with ALL new Macs running Leopard.
I've just switched to a Mac (MBP) and it utterley sucks to have a platform that can not retain WiFi connectivity. I mean that is pretty *** damn basic. Then you have the suckers who bought a MBA with the same problem all because it is thin. I mean what kind of metric is "thin" - I've never heard someone saying their laptop is too thick. Instead they have a thin machine that can not retain WiFi for along periods.
As you can guess I am less than happy that Apple fail to fix this problem and Apple followers try every excuse under the sun to avoid the issue.