I've "collected" one: Aglaonema 'Silver Queen.' It's a beauty. It's the only houseplant I have. Seems happy in a corner on a stair winder where it receives indirect light. Have you collected a bunch? Do you give them any special treatment?
An aroid collector in general here, but do have some interesting Aglaonemas including a few species. Anyone grown Aglaonema from seed here? Ive started some A. marantifolium seeds in spaghnum moss about a week ago but need some tips. Michael