If you don't think AWS bandwidth pricing is something in the real world I don't know what to say :) AWS is now broken out in Amazon financials - worth a look to see what they are raking in and the margins they are getting in the real world :)
"Clear pricing you say? I'll use Corey Quinn (The Duckbill Group [0]) as an example again"
His entire business depends on the fact that AWS pricing is clear and public. For a service like cloudflare (ie, call for pricing / dealing with a salesperson trying to figure out how much they can squeeze you for on upfront or on renewal) this type of service is much harder.
In short, if your bill is too high, you can talk to someone like Corey and they can probably help you bring it down.