I don't know. Lionel is still working out some rough edges in O scale. Who's gonna fix the defective H.O. stuff?
Theres still boxes of brand new O scale Lionel moguls waiting for new gear sets.
Theres something to be said for "keeping your eggs in one basket".
Of course, Tyco and Model Power were throw away trains, this seems more and more the direction Lionel is going in.