Amazon’s big announcement that it will build a second headquarters has caught the attention of local officials, economic development professionals, and pundits across the U.S. and Canada. And for good reason: “HQ2,” as it’s being called, would create upwards of 50,000 high-paying jobs and billions of dollars of new investment in whichever city it locates in. The city that lands this historic deal will see its economic and physical landscape transformed, albeit for a hefty price tag in the form of tax breaks.