You're right, they are a bit expensive. I'd better do some more research, and perhaps move the computer closer to the TV.
I went to my local store and asked for a cable to connect my DVI-I video card to my DVI-D screen. The woman looked at me like I'd just asked her the if she could hand me a spaceship. In fact, none of the 3 biggest suppliers of electronics in Norway sell DVI cables, even though they've been selling LCD screens for several years. I've found a cable in another store, however one would expect the top 3 to have such cables. Is it just Norway, or is everyone this slow? We're sitting here with our LCDs and HD TVs with VGA cables and analogue signals - thinking: wohoo this is quality!