The Ambassador Hotel has a plaque showing campaign headquarters for the Claude Pepper-George Smathers Senate race in the early 50's.
If there is a use or reuse for old buildings, every attempt should be made to save them with facades intact. However, sometimes the economic life of a building has come to an end. For example, removing asbestos may be too costly etc.
In that case, the Historical society and the library should make an effort to photo document the building before it is demolished. The state archives has one of the Seminole busts from the Seminolle hotel , for example. Sometimes, you just have to move on. If you got to York England, and to the York Minster, you find, inside a current Church of England, below that the remains of a Saxon church, below that the remains of Viking occupation, and below that, the remains of Roman occupation.
It is nice to save buildings if you can, if it makes economic sense. For example, the downtown Morroco temple, the Elks club, and Snyder Church(which has the potential to make economic sense). If not, make a record, and let the city move on.