I guess the question is, why wouldn't you?
What is the difference between HD Ultimate and HD Essentials now?
To answer your question, I haven't yet. I keep expecting Dish to announce something that will make me want to stay with HD Ultimate.
How can you DOWNsize your HD to the HD-only pack.. by definition you get all the HD (except maybe RSNs).. seems like that would be an UPsize (on the HD front) for anyone except those that had the AT250 pack + HD before..
there are 7 channels in the Ultimate package only.
World Fishing Network HD
You just have to decide if those channels are worth paying more. I think that they are but I can certainly see why some would disagree.