...for babies. I find them much easier for babies than real plants. No dirt, no bugs, not mess. Easy to clean, etc.
I've pretty much stopped using fake plants on my adult cages. they work very well, but I just got sick of seeing fake plants. Personal preference.
"use plastic plants only if you have plastic chameleons."
I think LeBerre said that in his book. It doesnt' make an sense as a reason. It's not backed up by facts, at all. Platic plants are not dangerous unless your chameleon eats them - which does happen. I've opened up a female calyptratus that had ingested the cheap silk-ish plants that vendors use at shows. Sure, the material doesnt' tear like plastic does, but the material breaks free from the stem very easily.
For adult veileds, and melleri, fake plants are not a great idea, due to their tendancy to eat plant mattter.
Want authenticity?
http://www.out-of-africa-plants.com/
I have not ordered from them yet -but Josh MEase of th eCRG has reccomended them to me. Why use ficus sp. and Sheffelera sp. when you can get the actual plant the animals live on in the wild!
Josh told me that I could tell them which species I have, and where it's from, and they could get me the plant/tree/shrub/vine they are commonly found on in the wild - most of the times. He's workign on putting together a list of the species they are most likely found on, and that'll help.