Do the people who run these broadband speed campaigns not know anything about physics?
The major factor limiting ADSL speed is attenuation. The longer the cable, the less bandwidth is available. No unless BT decide that it's commercially viable to put DSLAMS at the end of every street, or find the money to run optical fibre to everyone's front door there is no way in this earth that anyone is going to get even close to 8mbs unless they live in the exchange.
I get 2.4mbs and don't complain, because I know why I get that speed.
No instead of getting all hot under the collar because you can't get 8mbs, why don't you think of a way that ISPs can market their products, or perhaps you think they should charge based on where you live? But that wouldn't be fair, because it costs the ISP exactly the same no matter what bandwidth you get, because they pay BT per line.