Taking a long break

So I watched the season finale of Entourage tonight and at the end they announced that the show will return in the summer. The summer! That's at least 7 months. Why on earth would a show need that long for their hiatus? Regular network shows that end in May and start in September take a max of 3 1/2 months off. SEVEN months. It just seems absurd. What are they doing during all that time?