Why don't manufacturers put out smaller (30-36") rear projection sets? The reason I ask is because it would seem to be a good compromise in size/weight for someone who doesn't have room for a 50" rear projection set but also doesn't want to have to move around a 200 lb. CRT. Flat panels are smaller and weight much, much less but are cost prohibitive. It would seem like a smaller tabletop rear projection would be ideal in this situation. Is there something about the technology that prevents them from going smaller? Is it cost prohibitive to make them smaller because they couldn't charge as much for a smaller size?