Since the new Brick has been out for a little bit, I'm surprised to not see many threads about IQ comparisons between the two versions. From what I've read and seen, the ver. II is sharper wide open, has better color and contrast, but the upgrade is not as drastic as the upgrade on the 70-200.
I've been shooting primes a bunch, so wasn't really thinking about jumping on the latest and greatest, especially considering that I have a pretty good ver. I of the Brick, but my wife is pressing me on a birthday present and I'm thinking that this might be a worthwhile upgrade considering that some of the posts I've read say that this lens is getting into "prime-sharp" territory. Also, the blur looks really nice.
So now the questions.
For those of you that had Brick I and upgraded to II, have you been impressed with the upgrade?
How is the corner sharpness?
Is there a rebate cycle coming up that I should wait for? (b-day isn't until Feb.)