Thanks for beer 🙂
Here, at my place, the price difference is not so big.
Subscription for a fixed number is $6, and for a mobile number is $10 (for a cheaper package from the offer I have on a private mobile number, since I also have an official mobile number with unlimited content).
Although, I didn't switch off the fixed number because of the price, but because I didn't use it for more than a month.