I have seen much wailing and gnashing of teeth over LCG core set distribution models. Personally I think they got it right with games like Netrunner, which have an uneven distribution, making the game much more playable for owners of single core sets. A 3x distribution model on the core set would either be prohibitively expensive for players just trying out the game, or have too little variety.
That being said, I do dislike all the wasted cardboard of buying 2nd and 3rd core sets. For Netrunner, a 3rd core set gets you only 10 cards that you did not already have 3x of. $25-35 for 10 cards is a pretty awful deal. Yes, I know there is a benefit to people building multiple decks, but I think even those people would prefer what I have in mind.
I think FFG should release "Core Complement Packs" that only contain the cards necessary to bring the core sets up to 3x cards. They could be packaged in a small box, maybe a bit larger than their monthly 60 card expansion boxes, nothing fancy, no chits or anything. Heck, they could package them with something fancy to jack the price up and I'd still probably snap one up for every LCG I own.. They would lose out on multiple core set sales, but they would gain sales from people who a) refused to buy the game in the first place due to the distribution model (probably more vocal than numerous), b) people who bought 1 or 2 core sets, and want a full set, but are reluctant to get a 3rd core, and c) hardcore deck builders who want to build multiple decks with 3 copies of some single-distribution card, or whatever.
Obviously they'd have to see if it's worth doing from a business perspective, but I'd personally love if they did this.