45€/month for 250 Mbits/sec in ADSL. 85€ for 1Gbps in optic fiber (250Mbps upload)
I have the ADSL connection, and sometimes in hot summer it disconnects. Same in case of thunderstorm.
Back in France, I had 1Gbps (up and down) optic fiber for 40€, and not a single interruption in 4 years.
2 main reasons in my view: