i think its a lot deeper situation then just looking for negatives or the like.
its people who want to make sure they invested in something that doesnt have apparent issues out of the box. looking for them wont make them happen theyre either there or not.
like when i unloaded on a ACD 30" last month i wanted make sure it was evenly lit, no dead/stuck pixels and everything was tip top.
did the same with my MBP, everything turned out OKAY.
I couldn't agree more.