Currently, ALL Dominator is Micron D9. Currently, I'd say yes, the Dominator is worth the $40 difference in the example you gave due to the ICs.
As far as "hand picked", I don't know in what context others use it. But, I outlined I our testing above. So for some, that may mean handpicked. Different companies do different amounts or levels of validation. I believe ours to be the most comprehensive in the industry due to the hand testing of EVERY pair.