Why Return to Rapture?

CVG continues to analyze 2K Games' recently confirmed BioShock sequel, this time suggesting that the game would be better off if it used a setting other than Rapture.
It might sound a bit of an OTT subject to throw 700 words in an article at, but BioShock was one of those entertainment events that struck such a chord with us we want the sequel to be absolutely perfect (and hopefully not pull a Deus Ex: Invisible War on us).

Of course there are still plenty of areas of the fallen city we didn't get around to seeing (like all those big skyscrapers glimpsed in the game's opening sequence), and we'd never doubt that the game's masterminds to come up with endless more amounts of spooky architecture.

But no matter how hard they scribble and design, it'll never be the same as the first time we stepped out of the submergence pod into the dripping city station. We want to see something new.