Yeah that's pretty much my thought's on chain's too.
But i went the 2nd one from cheapest, 420NZ3 on the Braaap, the expensive one's are harder to clean, and still wear out too.
I'd rather replace a $50 chain twice a year, than pay $80-$100 twice a year.
It all add's up, and that extra money could be spent on making more power etc