Some folks are willing to pay for exactly what they want, but they're not willing to pay an additional amount to get content they don't care about.
Same thing that happened with the music industry: people don't want all the filler bullshit on some albums, they just want the hot single. Let folks buy a single MP3 and they will, or they'll pirate if you only provide the entire album for sale.
Some folks are willing to pay for exactly what they want, but they're not willing to pay an additional amount to get content they don't care about.
You have the option of buying the DVDs or through iTunes. Using your analogy, they can buy the entire album or a single track. If a band played some new songs at a concert, you'd have to wait until they made it on an album...unless someone records them and releases them for free.
But — umm — the release date is only, like, two or three weeks away.
Two or three weeks away would fine. Two or three months would be okay too. GoT season 1 finished airing in June 2011, and didn't come until out on DVD until March 2012.
Same thing that happened with the music industry: people don't want all the filler bullshit on some albums, they just want the hot single. Let folks buy a single MP3 and they will, or they'll pirate if you only provide the entire album for sale.