[Steve Brame] “Conversely, if you shoot SD and grade it well, it can look better than poorly shot/graded HD footage on a final media such as DVD. “
Right, but well shot HD footage will look better than well shot SD footage. One major difference, there were no cheap SD cameras that shoot 4:2:2, to go up to from a DV camera there was a huge jump in price. Where as with HD, 5K gets you DVProHD @ 4:2:2, 10K can even get you a 10-bit camera. Unheard of in SD for under 20-30K. Then there is the real 16:9 cameras at the lower price point also.
Also there is a benefit of shooting at higher resolution and reducing.
Saying there is a lot of mis-information is one thing, but you seemed to be implying that there is no benefit.
My point is simply that there is an answer for, “So why did you shoot in HD.” One that would satisfy the person that spent the money (which in fact is pretty much zero, since it cost no extra money to shoot and HD most flavors of HD).