I took survey via email. The DVD vs. PPV is a very personal choice. I for one don't have the time or schedual that allows for going to the video store. While it is extremely rare for us to order a PPV, it is usually an impulse buy. Someone wants to see the moive NOW. As for quality, you are all correct, but most of these Hollywood films are fluffy disposable works of commerce anyway, and even the Dish PPV quality is more than sufficient. Yes, I will see a Star Wars or Star Trek movie in the theater or with a DVD Dolby Digital 5.1 at my uncle's house. But all other movies just don't warrent the trouble and others in the household care even less about the quality because they just can't see it. They think Dish PPV quality is great--we all know it is not what it used to be, and it is dissappointing.
One bright note is the Dish VOD on my 625. I can say with full confidence that these offerings are in high bit. The video quality is outstanding, and the audio is greatly superior to the PPV. However, I refuse to pay $1 more for VOD just for that. I have purchased a few VOD at the $2.99 price. Those were movies over a year old, but I had never seem them. Let's hope that the VOD don't decrease in quality, but knowing Dish, they just may.
Best of TV-DVD watching to all.