Projection TVs are not very popular any more; people like their thin TVs. But they still provide an outstanding image, and the Mitsubishi LaserVue DLP sets are supposed to be incredible. You just can't hang one on a wall.
DLP technology itself is still very much in use; it's a major competitor in the video projector market. If you go to a large event like a concert that has projected video, it's probably from DLP projectors.
K - thanks for that.