1. DC area may have three potential cities, but Texas is the only other region that has two cities being considered
2. DFW airport is one of the US’s busiest airports, and American Airlines is headquartered there, so you can get a direct flight to anywhere in the country in 3 hours tops. Amazon already has multiple warehouses here and also ships freight through DFW and other airports in the area.
3. Public transit (Dallas has the largest light rail network south of DC), continued investment, world class museums, and honestly a pretty hip city with a lot of activity in the center, not unlike Seattle. Also lots of millennials moving there for its low cost of living and ample jobs.
4. You can’t beat Texas’ business environment — Bezos even praised it when he spoke at a business conference at SMU earlier this summer.
5. Establishing two offices will give Amazon influence in two places, and covering Seattle (West Coast), DC/NoVa (East Coast), Texas (South) gives them nationwide influence.