Thats of course if you can afford to do so! - First time trying all inclusive this week, not really what we wanted to do, as you do tend to feel almost, "obliged" to stay at the hotel. But it was a case of having to with having children this time, the sheer convieniance of it makes it worth while.
So really, Shouldnt need to much spending money, other than for the odd trip into St. Eularia / Ibiza Town - Might go to the Water Park again, havent been in nigh on 20 years though!