Price is most definitely a big factor. Like I've said...if one has many animals, it adds up painfully. Esp. since there is no "combined" shipping. I've been waiting on that since the stuff came out.
Since I only have a few animals, to me, the convenience of it outweighs the price.
There is no way you will have to throw out the entire substrate when you clean, though. It is easy to see where the mess is. Well, with your teeny one it might actually be harder. But you will notice a tiny "wet" spot with some urates. Unless that is somewhere buried within the plants.
edited to say, so sorry about the BCIThat stinks !!! Is no-one else breeding them?