Well, I guess that the fact that sending data through SMS costs four times more per byte than downloading data from the Hubble telescope sort of tells people that they're being screwed.

http://www.theinquirer.net/inquirer/news/303/1046303/sms-cos...

And sure - it costs the operator more than zero to send an SMS, but it's so close to zero that it's hard to tell the numbers apart.