I totally agree! I posted this on the News thread, but I wish that they would have "bundled" it for a time - maybe even for free - with the Park Hoppers. You know, get people hooked on it, and then either charge for it OR raise the price of PHs and include it.
If I was back in the diaper bag/stroller stage, or even when my boys were younger and they all had little bags/packs and our backpack full of stuff, to know that we wouldn't have to repeatedly go through bag check at security when we wanted to hop, I would have said, "Sign me up!" But, I just don't think Disney made it a priority to really market the service.