I think it's interesting that all of these different locales in the area are "planning on submitting a proposal to Amazon" when the metro/state leaders have made it very clear that there will be a "single coordinated bid" to represent the Denver region, with official blessing from the governor, as unambiguously stated in this article:
http://www.denverpost.com/2017/09/12...essons-boeing/
Therefore, the Auroras and Stapletons out there may plan on submitting a bid
internally in hopes they get picked to be the site chosen to represent the Denver region, but I don't think they will be submitting their proposals directly to Amazon; otherwise, doing so would be a mark against them in the eyes of both Amazon and the region/state leaders as a "rogue bid."
Key quotes from the article:
"“We are working very closely with our partners at the state and metro regional level to jointly submit a single coordinated, strategic, and intentional response representing the Denver MSA,” said Derek Woodbury, a spokesman for the Denver Office of Economic Development."
"Although Amazon is allowing one proposal per metro area, any communities that go it on their own would lose the backing of the state, limiting what incentives they could provide."