The season ticket waiting list is at least a bit inflated by people like me who take a membership each year to get the youth games (and full 90s occasionally if we have missed a game) on the OS, plus it was thought that we would have better access to tickets when we needed them. The resale experience has made that much easier for people like me to pick a location in the stadium (got a great seat in the Upper South when I made it over earlier this season). I can remember waiting for the chance of an Upper Bullens ticket behind a pillar on a Thursday night in the Europa League. And it keeps me on the season ticket list if I ever decide to return to the UK.
I'll definitely keep it in the future (I'm watching the youth game as I write) but pass on the season ticket if I get the chance. (I think I'm in the 0-500 for the season ticket now on the past history.)