I was PTS member and used it as an effective season ticket. I got the same block in the Kop for every game. If you were on the ball you never had to worry about missing a game.
But even as a member, I thought it was an unfair system. Unless you were in the 10,000 closed shop - you were in the pile with everyone else. There were people suffering the phones (or online system at the end) for 19 games a season - often getting nothing for their efforts. While people on the PTS were going to the five top games a season without any hassle. It seemed wrong that people in this exclusive club could pick and choose at the expense of people who wanted to go every game.
I realise people could make the same argument about season ticket holders - but they pay up front for every game. There is a big difference between that picking and choosing your games on the PTS.
Former PTS members will probably disagree with me but I think the new system is fairer - rewarding those who went to the most games in the previous season.