Ok. I'll throw another tantrum.
We both agree that one peice construction makes for the most efficient sink.
How do you explain the fact that a hedghog copper sink meets or beats an alpha?
It's pins are inserted into the body(alphas are one peice) and has less pins per square inch than an alpha.
(I'm getting Dejavu typing this.
)
Copper is just heavier, more difficult to machine, and more maleable. Those are the reasons copper heatsinks have not been used in the past.
That and the fact that most people buy into the aluminum gives up heat better theory.