Now that we have had a "Big Game", I'm willing to concede that the Blue lot is not being filled. Yellow either.
It does not make sense that they would hold back passes in hopes of getting larger donations. The whole blind-auction that occurs each year with priority points is already designed to do that. I honestly do not understand why 1/3 of the Blue lot is roped off. I was 2 points from being bumped to purple this year, and I know several who have been bumped from one lot or another.
I can only conclude that a large number of passes to the most desirable lots are going unused, even for a game against a top 5 team. I understand that some passes for these lots may be given to corporate sponsors. If that's the case and they are not being used then this needs to stop as well.
A USE IT OR LOSE IT policy needs to be started with parking passes.
They need to start scanning parking pass barcodes, and if a pass is not used for at least ~50% of the games it should not be sold to the same person the following year.
Anyone who is issued a parking pass that is not scanned at a minimum of 3 games during the season, will not be sold a pass in the current year. If a person had two parking passes and one of them was not used (at least at 3 games), then they are only able to buy one pass this year.
In other words: use it or lose it.