I admit, I don't have a good idea overall, but I suspect of the small percentage of RV subscribers, an even smaller percentage are clamoring for HD.
Be consistent, you "don't have an idea" of "you are far outnumbered".You are far far outnumbered to those that want full time RSN's for instance.
Either you know or you don't.
You want RSNs, I want HD DNS.
It seems that Sobongo has a business case for supplying HD DNS and Dish can provide for less cost.
I haven't heard anyone wanting to pay extra for RSNs.