The question that one can ask is this: Should all castles in in Transylvania be restored?
In many cases yes they should, the castle of John Hyundai was restored and is a popular tourist attraction where people can view some antiques. This a strong way to build the economy. In fact Bran Castle is a popular destination.
This castle however was home to a serial killer-- although for the most part long forgotten. Still this is located in an environmentally sensitive area. So, in many ways it should not be restored. It is still an incredible site to see.
Alba Iulia, and has places for tourists to take photos. In a way this does mean that some buildings will not be restored.