Another great, informative trip report. As an economy class traveler, I'm interested in (but not envious of) those who choose to pay a premium in cash or points for a luxurious experience in the air. In 2023, I had four 15+ hour flights at the back of the back. Mid-flight, I would have paid thousands for a lie-flat seat, but I survived --- and had premium experiences at my destination. Your choices seem right for you, and mine are right for me, and I appreciate the time you and others take to document your travels.
One small (and, I suspect, rare) correction: Labrador and Newfoundland are not "provinces". Newfoundland is an island, and Labrador is a continental region; together, they form the single province of "Newfoundland and Labrador".
LPD