DVD technology has advanced incredibly in the few years that DVD players have been on the market, and the price drops have been stupendous. Like every single piece of A/V gear, you can spend a fortune on a DVD player if you want to. And you may want to if you're building a really fancy, no-holds-barred, high-end home theater. Although you can get a great picture from a $129 model, if you have a high-end video projector and a top-of-the-line surround sound audio system, you may want to buy a fancier model. Such a system yearns for higher-quality electronic components and more powerful chips to convert the digital data on the DVD disc into video and sound.