Personally, I don’t think that variegated Monsteras are beautiful. Variegation is caused by a genetic mutation in the plant cells that prevents them from storing chlorophyll. Chlorophyll is that pigment that gives leaves their green color. It's also important in making the plant's food. So, that puts a variegated plant at a disadvantage. Other people would also use chemicals to force the mutation to happen. These can kill your plant.