You joke but I have been giving it some thought, of course not with 2000 Neon Tetras but somewhere around 333 odd community fish both egg layers and some of the odder livebearers. Livebearers are always a good thing for a community tank because they supply a rich source of live food for the other fish in the community. More so than the egglayers because the livebearers don't bother with protecting there young. Plus in a well planted tank you will always end up with 2~3 babies making it to weeks end maybe longer. Egglayers will supply the rest of the fresh nutrition, but the community will have to take the risk of being attacked to get to the good stuff.
To me the MOST relaxing and enjoyable Aquascape isn't a planted tank, or Monsters in a large or super large Aquarium. Those are all superly nice. But if I had the bucks, for me the Grestest enjoyable and relaxing Aquascape is a Marine Invert Aquascape. I can sit in front of a well done Marine Invert tank for hours on end. Nothing amazes me more than looking at a tank and seeing new a wonderous and colorful creatures big and small alike in there own world. Yes I love freshwater fish in every size and color too, I have even set up a tank 20G for Leeches, but theres nothing like your very own portion of the Deep at home.
But at this stage the only way I would be able to afford a nice Marine Invert tank @ 180G, would have to do the whole thing wholesale, and even then it wouldn't be cheap. But it would be Stunning!