I use/abuse my T-Mobile plan at times and at others barely use it at all. It all averages out to a pretty light to moderate usage, I figure. One of the reasons I really like T-Mobile is that they have never really bothered me about it.

The worst instance of abuse was once, for a couple months, I used tethering as my only home Internet access as my land lady was dragging her feet on getting Internet access installed. During one of those months I decided to watch the first few seasons of The Mentalist and that uses data plenty quick. An hour of video is still several hundred MB even with these fancy new encodings.

5GB is hard to hit if you're only using them on your phone. Even then, YT videos and podcasts can easily get you to that number.

But if you add in a laptop, things get real ugly, real fast...

Your $30 plan must be grandfathered in.

Their current deal is $50 for an "unlimited" plan that switches to EDGE after 500MB and $60 for a similar plan with a 2 GB limit (or 3 GB, can't remember which).

He is talking about the $30 prepaid plan, which is both still available and doesn't start throttling until 5gb.

$60 is for 2.5gb (500mb + additional 2gb)