I agree with you about points needing to stay, I would certainly consider bringing back points for less attractive away games however.
I've noticed an awful lot of people on higher points this season who're happy to go to arsenal, anfield and the toilet, however they haven't bothered with either of the Newcastle cup games or Swansea. Both these games matchday members have done a fantastic job of taking the slack.
I'm not saying there's any perfect ticketing system, however our current system makes it far to easy for people at the top of the pile to pick and choose their games.