The single TV antenna is most certainly true here in Mid-MO. I put mine in the attic and it is working great. Once I get all of my TV's replaced with HD I will probably drop D*'s local channels. Especially since the word is that D* won't carry the sub-channels. The local news/weather on "demand" is very handy even if it is on SD.
Just FYI that you can't actually drop locals, they are included in every package now. Only way to not pay for them is if they aren't actually available in your market.