It really depends on where you want to apply, as I far I know most top business schools would not favorably upon you taking the test 3+ times.
The best person to tell you that is the admissions officer at the school where you want to go, talk to that person and see what the school does. Also check out where you stand with the rest of your package, for instance, if you have a high gpa and demonstrate quantitative ability through job experience, you may already be set and ready to start writing essays.
Good luck!