The benefits would be two-fold. First, the new owners will have to start paying taxes on the property and revenue will be generated for all of the taxing entities. Maybe not as much as we would like, but something is better than nothing. Second, every building sold is a building being used. Buildings that are inhabited look a lot better than abandoned ones.
Business owners tend to take care of buildings they own.
Broken glass gets replaced. Walls get painted. With a little luck, local entrepreneurs might even find a way to start viable businesses in a few of these buildings. In the long run, tax revenue is generated, Pecos looks better, and local industry might get a small boost. The retail industry often uses big sales to prime their sales pump for the months to come.