Hi Michael,
I know this is an old thread, but the title caught my eye. I too am from the Dayton area (recently moved from LA to Nashville) and I have a rental in Dayton. I agree with your thinking that ultimately, the city will have to reinvent itself because right now it's a bit of a ghost town.
In the meantime, I wonder about little up-and-coming hot spots within Dayton that could be a bit more lucrative in my opinion. For example, the Riverfront park development in downtown Miamisburg. I have heard that it is part of a downtown redevelopment project to boost economic development of the downtown area. I don't have to tell you how quaint downtown Miamisburg is, although a bit run-down. To have a riverfront park with shops and eateries (if that is what they are actually developing there as I heard) would have to make those older houses more desirable. If they are spruced up, it would be a beautiful area. Those types of little metro centers tend to draw the higher end clientele who want the semi-urban feel. As I drive through there when I am visiting, it seems there is no short supply of run-down houses in that immediate area. Also, the Miamisburg schools have an excellent reputation. As a disclaimer, I have not actually seen the Riverfront Park and do not know how extensively they plan to develop the downtown or if that is already finished. Still, if it is what it sounded like it would be, I would be tempted to bet on it if I had the money to invest. There is also lots of buzz right now about Austin Landing which I am not familiar with. Based on the buzz though, I would look into the areas surrounding it.