If you think AT&T is expensive in Somerville, you should see how much it costs in Cambridge. (They don't have any competition here, so they can charge what they like.)

And if you think AT&T is expensive in Cambridge, you should see how much a comparable Verizon DSL service costs...

Seriously, though, AT&T comes out to around $35-40 a month, compared to $25-30 for a dial-up ISP that doesn't suck.