I've seen some of those knockoff sets and they're pretty terrible. But hey, you get what you pay for for the most part. Lego sets definitely have gotten overpriced, but still worth it to me.
I really want the Titanic, but just don't have the room or $ right now. I spent a chunk on the Star Wars sets that had the 4x points for the May 4th promo. That AT-AT set is gonna be nuts. Can't wait to start it.