I wouldn't pay more for a DVD included in a blu Ray, they already charge extra for the Blu Ray compared to the DVD alone. I do like the idea of simply including a DVD with the Blu-Ray as you said, it most likely costs a dollar more on their end to produce both and in the end BR would displace the DVD as the norm as people would buy a BR player since they now have a BR disc. I may buy UP! and Snow White just so I can justify buying an Oppo to my wife ;\)

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70