New information has been posted on the Paizo site clarifying the info that was mentioned in the most recent Prop Dusting post.
From the Paizo site:
Heroes & Monsters Standard Boosters contain 1 Medium or 2 Small miniatures.
Heroes & Monsters Large Boosters contain 1 Large miniature.
Heroes & Monsters Bricks contain 16 Standard Boosters and 3 Large Boosters.
Heroes & Monsters Cases contain 4 Bricks (64 Standard Boosters and 12 Large Boosters).
Prices seem a little high.
Individual boosters (one or possibly two figures) are $3.99
Large individual boosters are $5.99
A "brick" of sixteen regular and 3 large boosters is $74.99
A case of 4 bricks is $274.99
They have begun to add more pictures of the minis and for the most part I like what I'm seeing. If the paint schemes really are this nice then the price won't seem as tough to take.