I am discussing tour specifically by bicycle here. I like to participate in organized tours. Biking is the prime motive, and seeing places and coulture is next. It's good to be assured that you've rest stop with refreshments awaiting, and lunch at mid day. You also don't have to worry about logistics, accomodation etc. Infact, I don't want to worry about anything. I enjoy friendly scraps with fellow members of the group, and I don't miss any great sights. If I want to vacation, I do something else, and if I want to camp, I take a car. Nevertheless, I respect vagabonds on two wheels.