that may be true for rural Germany but I'm writing this from a 100 MBbit cable connection which costs me 40 EUR. You can also get 50 Mbit DSL for 35 EUR p.m. (both including a telephone flatrate)
Again,loved Berlin,it's just I always see some guys hyping it without being able to back up their points,so I'm calling their statements out.
Plus if you know you are not ready to move into something long term, then you simply move to a space where you can rent this.
It is widely known that Telekom had problems with certain areas and that is why you make a "Verfügbarkeitsprüfung" before even looking further at renting something. ;)