[tlrobinson]

The two are not necessarily mutually exclusive, especially with JavaScript frameworks you can run on the server to render the initial page, which then gets wired up to the client-side application. i.e. "Isomorphic JavaScript" [1][2]

[1] http://nerds.airbnb.com/isomorphic-javascript-future-web-app...

[2] http://isomorphic.net/