I don't think so. All channels with commercials should cost Dish nothing. Dish doesn't pay for OTA channels, why should they pay for "cable" channels. If a channel wants to continue to be watched, it has to go HD. If they want to charge, then they should be ala carte. We'd see how long they'd last. Most of them not long I'm sure.
Not literally but after the additional hd channels today (and more cinemax hd for a penny) you cannot possibly get more for the money with the hd only package.
Enjoy it while it lasts... come next year the chances of the HD-Only Package staying at the current pricing level of $29.99 with the current HD channel offerings is pretty much slim to none.