We are still successful normally with affordable price, don't create too many ad sets like 10-20 only and you can completely turn off high priced adsOptimization like this can be expensive, but are you sure it will work?
Personally, I see that advertising bids go up and down every day, so expensive and cheap advertising happens every day.My friends complain that advertising costs are too expensive these days.
But why are some expensive and some cheap?