AT&T is great where they have coverage. I get it from my DSL account with them. But it's only useful where they have AT&T (which is a lot of places) but not everywhere. There are other times you may want to get online and can't use the AT&T.

Only you can say if it's worth it or not. But look at it this way. Even if you use it just once a month someplace, it's less expensive then having to get a daily pass to get online.

I would keep it for a few months, if you are not using it at all then get rid of it, but if you are you know it's all worth it.