I like the "using the internet to its fullest" comment. Translated: Steal music, movies, TV shows. I don't see how it's sucking money out of your pockets - cancel the service if you don't like it and go back to dial up or DSL. Dialup is still fine for most webpages. But even if you think PTP is legit, surely paying extra is worth it - you are getting hundreds of dollars of free media that you otherwise would have to pay for.
Why should ATT upgrade their infrastructure? They are company trying to make a profit. If they can make a profit upgrading infrastructure, then they will. Since when did any company give a shit about anything except profit? I think the main reason people want more bandwidth is to steal blu ray or other HD sources.