My apologies then AllIn. It gets a bit blurry in here sometimes.
Now the answer requested.
Sometimes on International, I buy AD75 tickets, but generally opt for J class. The fare type you can buy is generally much higher than the cheapest business, but at the discount is reasonable. There a heaps of blackout periods when you canot do this. Large butt requires large seat.
Domestically, I without fail buy published fares, as you at least know you are going to get there and if you are bumped for weight and balance problems that you will be accommodated.
In the East West Airlines days, we had one positive space trip anywhere in the network FOC once a year for self, spouse and dependant kids. Also one subload, and later $5.00 processing fee per sector on any travel subload.
Those days are long gone.
Best regards
EWL