I will try to take a stab at this one. The dwarf retics are not bred to be dwarfs. Purebred dwarfs which some feel are a subspecies of Python reticulatus. They call this subspecies Python reticulatus jampeanus ssp., or better known as a Jampea dwarf. They are from a small island chain located in the Flores Sea. One of the islands that they are found on is called Tanahjampea. These retics are smaller then there mainland cousins. Some claim them to stay in the 5' - 7' range. I believe this to be incorrect. Mine are 3 1/2 yrs old now and my females are somewhere in the neighborhood of 12' - 13'. The male is just less than 10'. Mine are purebreds that the Baldogos produced in 2001.
As for the disposition I would say great, but don’t get confused and think they will not strike. If I open the glass quickly I am greeted buy a flying set of teeth looking for food. Once they realize its me they are fine. I would say they are a little more active then my tigers or super tiger.
I cannot help you with cost. I have not kept up with the latest prices. I will tell you this though. Be very careful thinking that just because someone claims a retic to be a dwarf does not mean that it is. Take for instance a tiger bred to a Jampea. They then are sold as dwarf tigers. I feel this is a shame because they are no longer dwarfs. What they become is a retic that has a washed out pattern that will get big but not as large as the norm. Their adult size should surely be larger then a true dwarf. Also the claims of the Bali retics being dwarfs are utter nonsense. There have been Bali retics found that have been over 16’. Is that a dwarf? I think not.
Jim