Yes, Aim talaga known as an expensive school kaya urong sulong rin ako. Parang sore thumb effect ang pwedeng mangyare sakin (ako lang ang poor sa mga magkakaklase). When I was still working in Paseo de Roxas, I see high end cars parked at AIM.
Most of the students in the other programs (EMBA, MM, MDP, etc.) are middle and top-level managers already and they are usually sent by their companies. The companies pay for their schooling.
Yung MBA naman, you can take a loan then pay for it later. I have a friend who did this. Para siyang nag-amortize ng bahay.

but it was worth it for her.
Going to AIM and other prestigious universities is worth it. I am taking MDP in AIM and the quality of teaching is really above par. Bakit ka pa mag-ma-Master's sa hindi kilalang school (in the field you want to master)? Will it add value to your career if you pursue it in a school not so prestigious but mas mura ang tuition. Definitely not.
Employers are swayed by schools with names. That is the truth.