The death of unlimited
- June 2, 2010
- Technology
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Let the AT&T backlash begin, er, continue.
The much-maligned phone company and sole provider of iPhone voice and data service (when you can get it), has decided to put the kibosh on its $30/month unlimited data plan. From now on, new users must choose between a $15/month plan that allows for 200 MB of data usage, or a $25/month plan that allows for 2 GB (with fees for going over, of course).
And if that wasn’t evil enough, they also agreed to let you pay them an extra $20/month for tethering service so that you’ll hit your data usage caps even faster.
Of course, you can always save your iPhone internetting for wi-fi hotspots, which would presumably not count against your quota while simultaneously making you less mobile and possibly much more open to security threats. Or you can fork over $150 for a MicroCell doohickey, which would let you funnel your 3G browsing through your home Internet connection (although again, it’s not clear whether that would count toward the quota or not). (Plus, once your ISP begins implementing broadband usage caps, that may not be an attractive option, either.)
Confused yet?
Now, before we go any further with the pitchforks, it’s probably worth checking into how much data people actually use currently. According to AT&T, 65% of smartphone users use less than 200 MB per month, and 98% use less than 2 GB. So theoretically, this change will save all but 2% of its customers at least a little money.
I went back and pulled my bills for the last 9 months, which is most of the time I’ve had my iPhone. The most data I’ve ever used in one month was 147 MB, and the average was 75 MB. Not once did I even come close to hitting that 200 MB mark.

But here’s the deal: This change of policy by AT&T isn’t about the money. They’re not trying to save some customers money or extort others. It’s solely about changing the behavior of its customers.
When something (anything) is unlimited, it has no value. If it’s wasted, it’s wasted, no big deal. There are no opportunity costs because it’s not costing you anything. After all, you’re gonna pay 30 bucks a month for data access whether you use it or not.
But once the concept of scarcity is introduced, all of a sudden that resource takes on real value. If you’re on the 200 MB plan, then you’re acutely aware that you only have 200 MB to last you the whole month, and you’ll naturally begin to conserve this now-limited resource. That’s basic human nature, and it’s what differentiates an inefficient allocation of resources from an efficient one.
I noted this same phenomenon a couple of years ago when I monitored my own bandwidth usage during a month-long experiment:
Something really weird has happened since beginning this experiment. Even though my ISP doesn’t currently set any usage limits, just knowing that my usage is being monitored has drastically affected how I think about the Internet. I’m hyper-aware of every song or video I download, every website I visit, every desktop application that polls the Internet for updates.
It used to be in the early days of home Internet access that a dial-up account included a limited number of minutes. As you used it, you unconsciously counted each minute spent online so that you wouldn’t hit your limit before the end of the month. Now imagine that same scenario but with a limit based not on minutes but on megabytes.
So the real evil here (if you want to call it that) is not in the actual elimination of the unlimited data plan but in AT&T’s use of price tactics to affect its customers’ behavior. Which of course is something companies do every single day, often without us realizing it.
Previously:
Choosing bars over batteries
The evil genius of AT&T MicroCells
Metered broadband vs. cloud computing


















