I know that at least one of the motivations for using AWS was that they didn't have to go through purchasing process of Conde Nast which was a huge roadblock.

I know that at least one of the motivations for using AWS was that they didn't have to go through purchasing process of Conde Nast which was a huge roadblock. I think that's actually one of AWS' biggest strengths. Once you get a corporate card in the account it's easy for the devs to buy what they need.