its a tough situation - the stadium seems pretty safe in the near term but eventually there will be a new one and the PSL will be worthless from what I understand about how these things work - other than I assume existing PSL owners would get first right of refusal to buy in any new stadium (spend MORE money to get seat licenses).
That being said I am pretty happy that Panthers fans can't get criticized for being in a taxpayer financed stadium and we all made the financial part work; the PSL program and its enthusiastic response was one of the reasons the Panthers were the slam dunk selection for expansion in the 90s.
A LOT of people just sell their tickets every year; I'm in the lower level and most of the people around me make money every year; some games are unsold but when teams with traveling fanbases come in they clean up. That part I hate! But for several years I regularly bought one guys pair of tickets for all the games at face value and it worked out great for both of us.