Paying 80 for a product that is worth 100 and have ads is standard practice nowadays, to the point that not doing this puts you in competitive disadvantage. You are than asked to pay the remaining 20 or put up with ads.
You see this in every lemmy discussion about smart TVs. People complain that TVs have ads and there's always someone that suggest getting a "dumb" TV but complain that they are more expensive. It's almost like ads subsidize the purchase price or something...
I feel the same. Find it annoying when in the US the waitress introduces herself, asks where I'm form, etc. Do you work for a diner or the CIA? Just bring me a steak with fries, medium rare, please and thank you.