I agree, but personally if I were to go that route I'd prefer doing it by hand anyway, but that's more because I work with a computer all day and mostly don't want to figure out more ways to use one at homeI want to see more in 2D using computers to evoke different media like pencil strokes, watercolor, charcoal, etc. -- stuff that would look like it was done by hand, even though it would take forever to in reality.
There are a number of short films that use computers, 3d, and non-traditional rendering techniques.
"Gas Planet" by PDI is one I can think of off the top of my head. Probably won't move you much, cause it's about alien snork creatures living on another planet that eat berries and fart. Not moving, but funny if you're up for a fart joke.
There are others, but I can't think of them off the top of my head at the moment. Which brings up my next point: unfortunately, these types of films typically fall into the "art" category (even if they are about farting snorks), which usually scares people off before they even give it a chance. In other words, not much financial incentive for bean counters to stick their necks out on "moving", "artistic" projects. And I think we all agree that that is a really unfortunate reality of the professional animation world, especially now that many of the truly great grants that used to promote this sort of artistic development have disappeared (I'm speaking for the US, but I'd imagine that it holds true for many other countries as well).