I'd love it if we could purchase DDE card without needing an AP to do so.
That aside, I'm pretty happy with the existing perks.
If I were going to shoot for the moon, a reserved DVC section for parade-watching, fireworks watching, etc. maybe not even every day, but a couple times a week. Wouldn't really cost anything, and it would definitely increase visibility, especially with a big DVC banner. I bet if people saw that in the parks, it might be enough to spark their interest in learning more about DVC. Win-win: nice perk for members; great advertising for DVC.