We're looking at minivans for this spring. If we find one with the DVD system included without costing us an extra $600+, we'll get the DVD. If not, then I'm going to find a tablet/laptop with a DVD player.

I took a widescreen laptop on a trip a while back and it was a much nicer screen than the ones in the built-in systems, but every time we hit a bump I saw the screen bounce. Thank goodness it was company-owned. The tablets you can strap in nice and tight with the screen layed down flat over the keys.

I keep seeing them on eBay for $400 - $500. Cheaper than the built-in systems, and I get to surf from the couch as a bonus. I don't really care what OS it has on it. I only need it to play DVDs, run Firefox, and use Putty/SSH.