Remember, AI at Couples also includes transfers, excursions, watersports, daily/nightly activities plus unlimited 24 hr food and drinks.
We rotate every other year AI at CN and then non-AI on Long Bay and always spend more non-AI.
If you are active and use most of what is offered, the $320-$360 per day cost at Couples is worth it (imho).
This year, we are at Idle Awhile and Catcha and just the average daily room cost is over $200/day.
We will be lucky if we spend less than $100/day once you add up food/drinks/water sports/transfers/route cabs/tips/entertainment/ect...
And we stock our fridge and get all the $ saving tips on here but we still always blow our budget.
If I could not find CN for less than $400/day, then the tables would turn...