Comment: Re:Go Ballmer! (Score 1) 289
Smaller would mean that you couldn't pack all the modern amenities (shops, casino, et al) into it.
If you've ever been to smaller luxury ships (Silversea, Seabourn etc) you would realize that the you can put evertyhing in relatively small amount of space. It is just a compromise between ship's size, number of pax cabins and their size (consequently the number of passengers), and public areas. In other words you can have a small ship, all the amenities your passengers would want, a great choice of restaurants etc and big cabins. But you wouldn't have as much passengers as a full QM2.
And on the other hand, in these times it would be next to impossible to fill up QM2 sized ship with wealth passengers. That's the reason small and luxurious cruise ships still exist (and hopefully they still will;).