Stitching a few images (2 to 10) often in two rows is a technique to obtain high quality landscape photographes for fine art prints and calenders. This was my way to photograph a series of images in the north of Scandinavia (North Sweden, Lofoten, Vesteralen) some months ago. Not all photographs in this series are panos, but more than half of the images.
I often use light-weight zoom lenses with considerable distortion and vignetting. Distortion was often eliminated by Autopano giga. Vignetting had to be eliminated before rendering. It worked fine and the advantage was that I had to carry a very light-weight equipment !