I think someone realizes that as soon as SciFi/USA/Fx/Weather/CNN HD all get lit up, there will be a massive shift to the HD ONLY package.
I'm not sure which wait for me is more annoying - FiOS or these 5 HD channels.
I think more importantly, there will be an massive shift (as in increase) networks charge Dish to carry their HD content, which I believe is what is driving the delay more so than bandwidth restrictions. It's the only explanation which makes sense to me, why they would not light these channels up now, and why would they consider filling up valuable HD bandwidth with some of those 2nd tier channels that appear to be uplinked?
With the mounting pressure to add content, I'd be willing to bet the networks are attempting to get a premium, and they know Dish and Direct TV are in a bit of an HD content war. I can see how Dish would want to hold out until some of the novelty wears off. They may lose some subscribers, but if they are looking at long term use fees, it might be worth the short term loss. What is worse, if they were engaged in this type of strategy, they obviously could not be open about, as it would tip their hand even more, which would result in the deafening silence we have on the matter right now.
I don't know, maybe I'm giving them too much credit, and I am assuming there is a premium being charged to carry HD content. But it is the only explanation in all this that seems to make sense to me.