Agree with you both Phoenix & Master Jz, I really doubt the AP Adv will have any significant value until you can afford to totally unlock it, and by that time, I'm willing to bet you no longer need it, b/c you'll also likely have tons of other AP Adv which already make finishing levels a cake walk. If I did the math correctly, it'll be in the range of 5000-ish to max out.

Similar to the ML AP Adv ... by the time you can afford to drop 13K to unlock on this (nevermind the full 100K to fully max out), you likely are pretty "Done" with WZI to the point where you can start a level, engage the Auto Advs and walk away. Too little too late.