Flying to Long Beach for the DL half on Saturday and I didn’t choose a seat. But I’m flying to San Jose with my daughter for a dance comp in March. I did pay to get a seat there. But really, I’m paying for the ability for same day standby. If you do basic, you have to pay for a full new ticket if you are early enough for the earlier flight. Learned that the hard way! So the seat comes with the flexibility that I sometimes want.