I'm specifically looking for people who currently have SD dish service, or recently upgraded from SD to HD service.
How is your SD content? I think mine is terrible, and that's just on my 27" CRT. I sit about 9 feet away, and can clearly see digital artifacting on nearly every channel. Even my wife (who doesn't usually notice that sort of thing) tells me DVD's look a whole lot better to her. I had a problem with my 625 box a while back, so they sent me a new one, and it looks the same.
I can't imagine blowing this junk picture up to 50" or even 42". Does the quality of the SD content differ at all if you get HD, like a 622 or the new 722? I'd imagine it's the same except processed through the internal scaler, and maybe slightly cleaner due to HDMI instead of s-video.
I've been fairly pleased with Dish, especially the low price, but the bad picture of SD content might make me switch.
PS slightly off topic, but if you only get SD service, couldn't you still grab some OTA HD channels if your TV has a built in tuner? I guess you'd just have to manually switch channels seperate from the dish, which would be kind of a hassle.