I'll throw out a counter argument, for the sake of conversation. I don't like it, because it's not relaxing. I do LEGO for a hobby, and to unwind. Technic does the opposite to me. It winds me up. I agree that it is SUPER rewarding when you are done. The stuff is cool to display. But in the end, I just don't enjoy the build. The biggest I have done is the MKII, and it truly is agonizing when something does't line up, and you have to back-track 1 hour to fix it. That is not an exaggeration. It can take an hour to fix something in the center of a complex mechanism. To me, that sort of thing just makes it stressful. The last point which is minor to me, is that I didn't do technic growing up. Some of the joy I get from LEGO are memories from my childhood, and technic just wasn't a part of it.