Holding the camera steady with a tripod will make each one of those images sharper. The shutter speed of most camcorders is only around a 50th of a second, and that's not fast enough to freeze much camera movement. You end up with 30 blurred pictures every second. A solid tripod will eliminate the blur and your video will be sharper. On a more esthetic level, there's little worse than trying to watch an image that's bouncing all over the TV screen.
Astronauts even experience space-sickness.
We've all experienced it watching our relative's vacation movies while counting the seconds till we can get off this bucking bronco of a video. You can help fight this dread affliction with a good tripod. It may not make people line up around the block to see your next show, but using a tripod will automatically make your videos more pleasant to view. Stand on solid footing with your legs about shoulder width apart, bend your knees slightly, tuck in your elbows, and hold the camera with both hands. Lean against a tree or building or chair for support.