That's tens of millions of dollars in salaries injected into the local economy from one employer, not to mention the other additions like local taxes and utility spending. 1000 jobs is significant.
Wait, WHAT? The average Amazon warehouse worker makes $13/hr. That's ~$27,000/yr BEFORE taxes. In other words: any employee making that salary and actually trying to raise a family is collecting more from the government than they're paying in. They aren't contributing anything to the local economy, they're draining it just like Walmart.
How does an Amazon warehouse drain money from a local economy? Purchases at Wal-mart export your money outside of a local economy, but the presence of an Amazon warehouse doesn't really change the number of purchases you'll be making at Amazon in your town.