1.  New York City has less warm&#x2F;mild weather than any coastal city southern to it along the East Coast.  Yet it has the highest per-capita income of any of them.  I don&#x27;t know your location but this unfounded weather-as-a-migration-driver theory seems to be propagated by Californians and Coloradans.<p>2.  Agreed, network effects are what drive these headquartering decisions now.<p>3.  It&#x27;s interesting that you&#x27;re choosing Buffalo as an example.  It&#x27;s currently experiencing a resurgence [1] [2], as is Pittsburgh [3] [4].<p>[1] <a href="http:&#x2F;&#x2F;www.nytimes.com&#x2F;2015&#x2F;07&#x2F;21&#x2F;business&#x2F;energy-environment&#x2F;the-wind-and-sun-are-bringing-the-shine-back-to-buffalo.html?_r=0" rel="nofollow">http:&#x2F;&#x2F;www.nytimes.com&#x2F;2015&#x2F;07&#x2F;21&#x2F;business&#x2F;energy-environmen...</a><p>[2] <a href="http:&#x2F;&#x2F;www.ci.buffalo.ny.us&#x2F;Home&#x2F;Leadership&#x2F;City_Comptroller&#x2F;economy" rel="nofollow">http:&#x2F;&#x2F;www.ci.buffalo.ny.us&#x2F;Home&#x2F;Leadership&#x2F;City_Comptroller...</a><p>[3] <a href="http:&#x2F;&#x2F;www.usnews.com&#x2F;news&#x2F;articles&#x2F;2014&#x2F;09&#x2F;02&#x2F;an-urban-revival-in-the-rust-belt" rel="nofollow">http:&#x2F;&#x2F;www.usnews.com&#x2F;news&#x2F;articles&#x2F;2014&#x2F;09&#x2F;02&#x2F;an-urban-revi...</a><p>[4] <a href="http:&#x2F;&#x2F;www.economist.com&#x2F;node&#x2F;14460542" rel="nofollow">http:&#x2F;&#x2F;www.economist.com&#x2F;node&#x2F;14460542</a>