Thanks for the continued posts, appreciate the thoughts! Points are the priority for me, all things considered - so I will not 'chase' loyalty. I will funnel miles and XP into FB if and when possible, but will not go out of my way to do so. Instead I'll prioritize finding well-priced rewards tickets. I will get the FB credit card to help with this. Given the 5000 points awarded every anniversary (after spending at least 50 Euro), the 89$ annual fee is already mostly covered, so I don't really see particular downsides to this.
Thanks all!