[pox]

Gap series doesn't
Hyperion doesn't, but I read it in one volume so that's tenuous.

erm...

someone help..

[Omphalos]

Robert Kirkman's The Walking Dead has not yet, and they have six hardbound volumes out so far.

[nquixote]

Hyperion trails off if you count the Endymion books. They're definitely a step down from the two Hyperion books.

[Michigan]

Don't confuse SF with fantasy. It's fantasy that every author feels the need to write a huge series, that invariably tails off at some point.

[pox]

Hyperion trails off if you count the Endymion books. They're definitely a step down from the two Hyperion books.

now see i hadn't counted that! good point, that blows that out of the water too then.