1.5 years ago, I would say I like CPU's better. Today, I'm ambivalent.
And I definitely think that Golds / Silvers (maybe Plats) would for sure be better with e-500's.
it is interesting... I think a lot of people would rather know they have a reasonable shot at an upgrade, even as a gold. Rationing out upgrades (As they used to) is a good thing. Setting up everyone for the expectation that they're going to get an upgrade leads to despair 'dammit #39 on the upgrade list?!'.