Garbage pick-up is just one...think about all the garbage the WTS generates
Actually, the Wt has their own garbage trucks. But the real issue is the Wt has property that is kept off the tax rolls. This property is "lost revenue" for the city. This includes not only real estate taxes but consider that if these building were occupied with working people they would be contributing to the community by paying taxes and supporting local businesses who in turn pay taxes.