A guide to buying a projector.
Need a good reason to buy a projector? How about this: Of all the video-display types, projectors provide the biggest image for your buck. Rear-projection TVs, which were once available in screen sizes up to 92 inches, used to be an even more affordable big-screen option, but the last manufacturer with a stake in rear-projector manufacturing, Mitsubishi, recently closed up on that biz.