Perhaps you haven't heard about the deck rating system we've been discussing.
There is no formula for it yet, but it basically sums up as: decks will only be able to play other decks with similar strength.
If this system was implemented, there wouldn't be any laming by powerful decks. Thus there wouldn't be a need to rush cards into player's hands; people could expand their collections at the current rate and still play against people with similar deck power.