University Decision

I know that this sort of post is becoming trite on this forum but I would really appreciate some perspective from people who have been in my situation previously or situations similar.

I'm originally from Australia but live overseas (Middle East) as a HS student. I ultimately have to goal of working in financial services (IB/PE) in the US.

Currently I have offers from:

Notre Dame Mendoza:

         With scholarship and financial aid I have been offered it will cost around ~$25,000USD including most living expenses for 4 years 

Wharton:

        No scholarship so will end up being near enough $60,000USD for 4 years (I.e. $250k-ish total)

I also have the opportunity to go back to Australia to study in January of next year, probably at UNSW/USyd or the like, and my GPA equivalent means I can enter every course offered in Australia and am very likely to receive scholarship. I would probably try to do Commerce and Law which would end up taking 4 years in total and costing $60,000USD total for 4 years plus living expenses, or with scholarship would be effectively free.

As I say, ultimately I'd like to work in the US however I understand there are many routes to the same destination, and I'm especially concerned about the difficulty of being sponsored and receiving internships whilst in university in the US.

I'd really appreciate any insight or perspective you could give.