I would believe that letting lotus/banana plants grow along the surface would be more attractive for people with biotope aquaria, paludariums, and open top aquaria mainly because there would be little to look at under all the floating leaves.
I think Phil suggested an African paludarium biotope with killifish, having lotus leaves cover the surface and Ammania gracilis creeping up a bank in its emersed state. It sounded great. I hope he does it some day.
Carlos