Definitely a good point, Tater - it's mostly about control. I can't control the turbulence, and even the pilot can only do so much about it. They don't always know when it's coming - the only real way they can tell if there's going to be rough air is if another pilot has reported it in the area recently. Even if they do hit rough air, there isn't always a way around it - if they veer too far off-course, they need to get permission from the tower, and that can take time. Sometimes (if there's a large storm system, for instance), they can't always fly around it, and they just have to deal with it.
Our landing in London was pretty rough, because there was a ton of wind, and while I was never in fear that anything bad would happen, I was shaking the whole way down. I'm hoping that I'll just get used to it. I'm debating whether I should go to a doctor (I just recently got health insurance for the first time since I moved to CA, so I haven't gotten myself a doctor here yet) and see if they'll prescribe me something for the anxiety that I can take before the flight to help keep me calm, but I'd rather that be a last resort.