Intel has had more than a decade of monopoly on performance. Monopolies tend to keep innovation at a minimum. We need AMD competing again. Back when we had AMD's FX lineup of the mid-2000s toppling Intel's performance crown. Shots were bring fired by both companies driving innovation and performance boundaries. We, the customer, were the winners.
Growing more and more processor cores is great and all, but we need to see raw processor speed (GHz) increases. We have sat around the 3-4 GHz mark for an eternity now. I know all of the power / heat / dissipation obstacles that stand in the way of that on current tech, but this is what needs the greatest change.