I could care less about the $2 fee and will never buy anything, since I can get all of these shows for free by hitting my record button twice. But I do think you are comparing Apples to Oranges. What are the monthly subscription fees for Apple and Microsoft downloaders? There is a big difference between a paid subscription VOD service (like Comcast and Directv) and an online a la carte shop (like Itunes and Xbox).
The only difference between the two is Direct TV is a bit cheaper. And, once you buy video on the 360 (except movies) you own that episode. But really, the NBC side of both providers are the same. I can't figure out why Direct TV has the 24 hr viewing policy for TV shows. That's where they will loose me in this deal.
IMHO, I would like both providers come up with a plan where you can buy the entire season instead of individual episodes.