There's more info about LCGs around the website, but here's the basic idea. CCGs have randomly distributed packs. You could spend a lot of money trying to get the cards you want while ending up with a mountain of worthless cardboard. LCGs have fixed distribution so no matter which starter box you buy, it will have the same cards. Same goes for new expansions. It keeps the game economical, and in my opinion keeps the game fresh and promotes more varied deck building. LOTR is a co-op game, so it can lend itself easily to a one player format.