I've been a few times since the new paid line skipping system started and have never used it. I think it depends on your park style and tolerance for waiting in lines and even how often you go. If you are going to be there for longer than say 4 full days and have park hoppers and don't want to ride everything in every park and don't mind waiting in some lines, you don't need it. I go often, have been going since well before there were any kind of skip the line systems (free or paid) and waiting in lines was just what you did if you wanted to ride. I don't want to ride every ride in every park and am almost always there for at least 5 full days. I've always been able to ride every ride I want to and still take a 2 to 3 hour afternoon break. I rarely rope drop or use EE and rarely stay to park close.