I stayed in a balcony cabin on Royal Caribbean's 2 newest and largest cruise ships. One was clearly better — and $900 cheaper.

• Icon of the Seas and Wonder of the Seas are Royal Caribbean's newest and largest cruise ships.
• I stayed in both of their balcony staterooms — a $130-per-person-per-day difference.
• Icon's pricier cabin looked more modern but lacked the functionality and comfort of Wonder's.

Do you know what $900 could buy you? More than three years of Netflix's premium plan, a new Gucci purse, or 2,059 spicy chicken McNuggets.