I don't want to mess around with digital antennas. Like most people, I'm willing to pay for convenience. Streaming All Access on my Xbox or my phone is way more convenient -- that's how I watch everything already, it's all in one place. Hooking up some other bullshit is not something I'd be excited about. I'd rather just pay the six bucks.
EDIT: Also, when DSC isn't on, I can just cancel and re-subscribe when it comes back. But if it were on regular tv, for most of the year I'd have this pointless digital antenna just collecting dust in my house.