Gamsutra quotes a Lazard Capital Markets analyst that estimates a U.S. launch ratio of premium/core consoles at 80/20.
I can’t imagine that any of the early adopter consumers who would want a PS3 during the launch rush would want the core version so I’m glad the launch ratio is rumored to be heavily weighted towards the [...]
"Analyst says U.S. PS3 launch shipments ?should be roughly 80/20%? of premium/core units" - 12.09.06