Wolverine: Origins # 27. Number 27?

I was cheerfully reading Astonishing x-Men 25, the new Warren Ellis & Simone Bianchi (must get review done later. Maybe) when this caught my eye:
Wolverine - Origins # 27

Twenty Seven? Twenty bloody seven? That's not an origin, that's an entire life story.

I've no idea what it's about now, but surely you can all see the ridiculous nature of an origin series getting to it's 27th issue?