Promotion is an important part of development of every project. Without promotion it is impossible to survive.
I checked the prices and I see that promotion costs a lot. But a lot depends on the results of promotion. May be it is not a lot
A good service cannot be cheap. Don't forget about it, but I don't want to overpay either.
The main thing here is to find the right combination of price and quality so that advertising is effective and at the same time not too expensive.