Well, I've been on new telephone/internet provider for last ~2 years, bit less. I pay roughly 30$ for flat rate (uncapped) 3Mbps ADSL and telephone line (which I hardly use). My monstly bandiwth isn't huge, like 10-12GB monthly, even though we use YouTube a lot, and I sometimes download something that I need..
But I do want uncapped, just cos I don't want to get in "oops!" situation. And if I would have some service like Netflix here in Croatia, sure I'd use much more, and want uncapped even more!
30$ is price that is just fine for this service.. Maybe a bit more speed wouldn't be too bad, like 5Mbit, just so it's all "smooth" if we all use it at the same time around the house.. But uncapped is a must.
I'd rather have 3Mbit uncapped, than 100Mbit capped, for the same price! Unless "caps" are like 1TB monthly