You've got exactly the right attitude towards it though, Almar.
To be honest I get a little fed up with seeing some of the releasing companies moan about it, but not do anything to address it.
If you make the DVD/Blu-ray package attractive enough over just a plain download, it will fly out. Cheap skates who rip-off DVDs are never going to be interested in quality, they're not the ones who they'd be selling to in the first place.
Film aficionados are the ones who spend money on films and they want definitive best quality versions. Give them that, and the sales will be great.