The problem is that Netflix/Qwikster is the worst of both worlds.
Netflix was originally worth it because of their low prices compared to Blockbuster on a per rental basis as long as you turned your rentals over quick. Netflix's DVD back catalog is great but now due to their recently negotiated contracts they're getting a lot of new releases 30 days later than retail, Blockbuster, and cable video on demand. Maybe they can buy a retail new release but they can't stick it in an envelope and send it to me for a month.
The streaming quality isn't all that great right now and the selection is poor. Streaming was the thing that kept me subscribed to Netflix when I wasn't able to get new release DVDs on time. It was a good value add. Neither service is worth full price to me now. If they're able to get new releases back or greatly expand their streaming catalog I'll consider coming back.