In other words, if you are significant user of bandwidth...Cloudflare will charge you accordingly [and as you can see from the solution in the blog post, it is much cheaper to just rent a dedicated server than go through Cloudflare if you are willing to give up the CDN cache].
Cloudflare doesn't care about anyone using relatively small quantities of bandwidth because even in aggregate, they aren't costing Cloudflare enough to be a problem.
The other part is....
I doubt Cloudflare is paying "sticker price" for its bandwidth. Places like HE.net sell cheap bandwidth @ $.45/mbps. I wouldn't be surprised if Cloudflare has as good or even better rates at every POP they have.
You are probably thinking of the retail price of Amazon's bandwidth [which is like $.10 a GB. To give you an idea, at $600/mo colo with HE.net you'd have about $2,000-$3,000 worth of bandwidth at Amazon's prices depending on the usage pattern].
* http://phoboslab.org/log/2013/02/how-much-traffic-is-too-muc...
* https://www.cloudflare.com/terms
Specifically, the Non-html caching bit.
In other words, if you are significant user of bandwidth...Cloudflare will charge you accordingly [and as you can see from the solution in the blog post, it is much cheaper to just rent a dedicated server than go through Cloudflare if you are willing to give up the CDN cache].
Cloudflare doesn't care about anyone using relatively small quantities of bandwidth because even in aggregate, they aren't costing Cloudflare enough to be a problem.
The other part is....
I doubt Cloudflare is paying "sticker price" for its bandwidth. Places like HE.net sell cheap bandwidth @ $.45/mbps. I wouldn't be surprised if Cloudflare has as good or even better rates at every POP they have.
You are probably thinking of the retail price of Amazon's bandwidth [which is like $.10 a GB. To give you an idea, at $600/mo colo with HE.net you'd have about $2,000-$3,000 worth of bandwidth at Amazon's prices depending on the usage pattern].