Which option would you pick?

I need get two tickets for my in-laws from PVD to GRU then to IGU.

I can go ALL THE WAY on AA for 60k each.

OR

(CO is 35k miles)
I can go on CO from PVD to GRU then purchase for $300 each 2 tickets to go GRU-IGU this will save me 50k miles but cost $600.

What’s the better option? I have no other miles available on other airlines.

AA all the way for 60k or CO 35k but pay $600?

Thanks for your advice.

[This message has been edited by tasnam (edited 06-18-2003).]