The DVC pass is way too restrictive! We have been using the annual pass the last couple of years, and that has worked out much better for us.
We too would just like a DVC discount available on all ticket media..that would allow us to pick and choose what fits our individual vacation styles. Like Pam said, even the same discount offered to the Disney Club members would be a good start!
I'm not sure what the person was thinking of when they dreamed up this special 5 year DVC ticket..I too would love to see some stats on how many people actually purchased them. However, offering some type of discounted ticket was a step in the right direction, and maybe DVC will be able to work with WDW to come up with better options for their members.