CloudFront costs are super expensive outside of the US and Europe. We are a small company and just in south America we are paying 1000USD per month for 4 TB of traffic (0.25$ per GB). Based on traffic alone we are loosing money with some customers.
Seems like you should use CloudFront for things that are both small and need to be fast (HTML/ JS/ CSS), and then use a separate service for hosting your fat media files. Heck, rent a pair of servers with unlimited bandwith somewhere for $100 a month. Yes the bandwidth may be a bit oversold and spikey, but if a giant file download slows from 10 MB/ sec to 5 MB/sec for a bit, I doubt it matters THAT much.
