In UK suburbia I went from <1Mbps on ADSL2 (new build area of town resulting in a seriously round-the-houses copper connection to BT exchange, 2.5 miles away as the crow flies) to 80Mbps line speed as soon as my local cabinet went to FTTC. I was the second line installed. Speed has dropped since as more people have got in on the action.
That was a significant upgrade.