True. Obsession with length is actually pretty bad. Unless you're screwing a whale(insert harpoon joke here), length is actually least important and more of an image propagated by the porno industry. For most women 6" is the maximum, 5" is average and just fine for the most part(the worldwide average is something like 5.2"). Anymore is just going to leave your cock out in the cold. Circumference on the other hand stretches her walls and will hit more sensitive areas. Downside is that anal becomes an issue as does deepthroating(although many women have problems with that to begin with).
In order of importance - technique=longevity>circumference>length. Yea, I know too much about cocks for my own good. That's what a college education is for.