I believe that building Lego sets or your own creations is like reading comics, playing video games or watching cartoons. It's not only for children but for adults as well. Everybody can enjoy the building process of a set, kind of like assembling a puzzle or a model airplane, and making something creative and personal can always be fun. And you're going to build something very complex, you would be glad for being so easy. I can see why many people like Lego, but I still fail to see why some feel like they have to get every new set as soon as they released, even if the set is actually bad and no matter the cost. It's just plastic bricks, so why the rush and the complains that "they're too expensive"? If you feel like something is overpriced, don't buy it. Or at least not yet. Wait until the prices are down. It's not bread. It's not gonna get mold or something. Just relax and wait.
I've seen this mentality of "I have to buy it now and I don't care how expensive it is" again and I still don't understand why. Maybe I'm just such a big idiot.