The famous resort of Spain - San Antonio-Abad - today is one of the most popular beach destinations not only in Ibiza, but also in the whole state. Nevertheless, vacation in San Antonio-Abad can not be called exorbitant. The most expensive is the flight and accommodation, but food and entertainment in San Antonio-Abad is quite affordable by European standards.
So, you will have to spend only 25-30 EUR per day for leisure. This is if you go to some amusement park or night club. Sightseeing and buying souvenirs will cost even cheaper. So local souvenirs at open markets are offered from 5 EUR, such delicacies in supermarket chains as jamon and fruit wine - from 15 EUR.