1 core set of the CCG is $40, with 4 decks. Great value. BUT, for a person who is just giving the game a chance, they are not going to pay $40 dollars for 4 decks. They might pay for a regular starter faction deck, however. So if I were to convince someone to get into the game after giving them a try of my core set, I need them to get a 40 dollar core set of their own... when all they wanted is to play the game as Stark and get a Stark deck. And I'm certainly not going to give someone cards from my core set.
What do you do?
And FFG, why not give these, let's call them "new players who's got a friend who already owns the core set" an easier entry point?