That's not really consistent across Ireland though, let alone Europe. I was paying €50 a month for two megabit DSL in Kilkenny five years ago as that was all my ISP's backhaul was good for.
In Cincinnati, the Cr^H^HTime-Warner Cable rate rose every month of every year for as long as you remained a customer. Complaining would get you a story about it being a "billing mistake" and "a credit on your next bill". The credit usually didn't arrive unless you complained again. And even then they might randomly switch tactics to "We're so sorry. We'll give you [1 | 3] months of [HBO | Showtime | Starz | all premium channels.".
I'm still wary of comparing charges across metros. /-:
It’s one thing to have a monopoly and gouge your customers if the product you are providing is unimpeachable but they are far from that.