I love the $312 plane tickets as I have paid much more some summers. I could use AA miles I scored on a credit card bonus, but if I value those at $10/1k (about half what I valued them at decades ago) and they want 30K + $105 - nope! I could have spent $80 more for the main cabin so I could make changes and select seats, but that didn't appeal to me. I expect the airline to make changes on me anyway as they do whatever they want to with people these days, so when that happens - I'll be in charge of changes anyway. And I am not especially picky about seats as I usually sleep most of every flight. They'll assign me one from the leftovers when I check in the day before, then I'll decide if I want to change at that time. I've been booking aisle seats three rows from the back going as that's far enough to avoid privy lineup crowds I think, and they have been deplaning from the front and back both, but I'll check on that in August.
And I booked my trip insurance the same day to avoid problems. In fact, I used dates two days before actual departure and two days after actual return so I'll be less likely to have to file changes when the airline changes my flights. It doesn't cost extra, so fine. I used DAN trip insurance last time as they are more competitive than the company I had been using, but someone pointed out that Generali, the insurance company that actually writes their insurance, has their own trip insurance so I looked. They offer more medical coverage for less! I just booked a $500 trip cost to cover the plane as that's the only noncancelable aspect aside for the first few days hotel, but of course at my age I pay a lot more than most.
DAN offered $50K for $69 or $100K for $88, but Generali gave me $150K for $78 along with the other coverages expected. Sweet. Well, that level does not include preexisting problems, but I'm ok with that. They do cover preexisting at the $250K level, but I didn't see a need in paying that much. I'm really in pretty good shape in spite of my age and myself.
And I booked my favorite dive op with 100cf tanks @ 3300 psi before repeat customer discounts, along with my favorite cheap hotel a block from the plaza. So now I just need to make repairs on my camera strobe and one of my wheeled bags.