I understand your complaint and agree with it, but, as a practical solution, pop in the DVD, then go make your movie snacks -- pop popcorn, grab a coke, whatever. By the time you get back, the previews will be over, or if there are none, it'll be sitting at the menu anyway. There's the occasional older DVD that'll just go straight into the movie, but it's easy enough to restart those.

And, on another point, I hate product advertisements in the theater but I don't mind trailers. Trailers are good. But the reason they suck on a DVD is that you're just going to see the same ones over and over. At the theater, you have the chance of seeing a new trailer. They also seem to advertise the worst movies on DVDs. I guess they overpressed those.