Since some buildings are good early on, but later aren't worth the cost (like Masons after you have built everything, or Barracks if you are not going to train troops there again) removing those buildings is smart. Perhaps this is tedious micro-management that should be resolved some other way, but as long as you are paying maintenance for buildings you are not using, removing them is good management. But have you ever tried to remove a building? You click the Destroy item in the build queue, which gives you a shovel cursor, then... what? You have to guess at what building is the one you want to remove. There are no tooltips. I would suggest, in addition to tooltips on buildings when you are in build mode, that buildings be removable from the city details window. That way there is no hunting around for the right building, just click the button beside the building you want to remove, confirm, and it is gone.
