My understanding is that QR National are clearing house and getting rid of the old stuff. 1720s and 2600s are going overseas, by the looks of it this one will be going to WA for parts (if it's being held for ARG as the writing says). 3100s that weren't converted to 3700s are going overseas as well from memory.
yep got some pic's of 3101-02-03 sitting on the Port loop after being sold... and ready for shipping... I particually liked the debadging .. where is that can of black spray paint...