First off, grammar police, it's not "el iupi", it's "la U.P."
Pronounced you pea.
Second, UPR is better not just because it had relatively more money but because it is much more desirable geographically to live in. Means that students prefer to attend there, and professors prefer to live there which is a big factor. It's not for nothing that the San Juan Metro area has 50% of the islands population.
Additionally, being such a large urban city it has a large hospital network that attracts better attendings who see higher acuity cases on a very frequent basis leading to superior clinical training. Money won't change that. Additionally, I think you are over estimating how much money Aris is going to give Ponce and additionally how much that money will actually buy the University. Things are substantially more expensive over there, and there are a lot more bureaucratic hurtles to overcome. And in PR, progress and change move extremely slow.
But continue into oblivion in the pure bliss that is your ignorance.
FWIW, I say that last line with all the love in the world. I love all of PR, and am not trash talking Ponce as a medical school on principle, just as a rivalry sense. Having said that, there is a reason why since the beginning of time San Juan has been the place to be in PR.