Well i will say when it comes to Disney that $10,000 family balcony includes a lot of the stuff that other cruise lines may make you pay for. one example is on Carnival the ocean suite is about the same thing as a family verandah on Disney. On carnival the suite on the newest ship in December 2020 would include priority boarding and disembarkation, the only things you have to pay extra for are some of the specialty restaurants, drinks ie soda, and internet. On Disney most to all stateroom come with all of the above included the main extra cost is internet and adult restaurants. so same itinerary in December 2020, Disney would cost around $7,240.60 and carnival will $4,386.08. On carnival by the time you may add up the extra costs you might still be under Disneys price. While the experience is what you make of it going into Carnival it can sometimes be a little better while spacing out you cruises on Disney.