Below are a series of photos of one city Alba Iluia, which to me is one of the most fascinating places you can go to in Transylvania. I would go as far to say that it is one of the more recognisable after Bran Castle. It probably helps that It is the "heart" of Transylvania for many of the the peoples there.
Transylvania and tours a really popular these days. It is one of these things that people want to do. The question is more "Why Not?" It is a beautiful place and it is historically valuable. The key point here is that for some cities like Alba Iluia, history makes the money that the tourists want to see.
Money reactions to this?: yes when I do go to Transylvania this is one of the main cities which you can spend some money on and still find a lot to do, there are a lot of places to see and a lot of history in this city. Like Bran Castle it is vital to Transylvania and the people and culture.