[mediascreen]

You would roll your own CDN? I think that setting up a worldwide server network with seamless scaling would involve some work.

[kuschku]

You don't always have to.

For example, I use a CDN for some of my assets, except for users in the EU.

It turns out, for users in the EU I can get faster speeds with my own systems, for almost two orders of magnitude difference in traffic pricing.

If a large amount of your users happen to be in such a region, it might even make sense to use no CDN at all.