Do not buy AP! I read something the other day from someone within the company that if you buy AP and do not buy AP for 4 months after the purchase, they will flag your account and monitor you. This is probably because they think that you'll rebuy the AP, and that you only need a certain amount. I guess this way if they get the smallest report that you use macros, they'll ban you. This happened to me, and to 2 other of my friends, sans any hacking. My suggestion: don't support Aeria, because they're like a big bully!
Just my 2¢.