In interest of not raising my blood pressure, I won't read or answer in the immigration debate that has sprung up here
I would like to comment on the original topic: getting visas for a Peruvian.
According to immigration guidelines, an American citizen has a RIGHT to bring their spouse to the states at any time. I have never heard of anyone being pressured to apply for residency and I know MANY AMericans married to Peruvians that live here and the spouse simply has a 10 year tourist visa.
I know that when my BF went for his visa, he was behind 10 people in a row who were denied and then he was given a 10 year tourist visa. There was no formula--we did all the paperwork but he was still 25, single, with no property or significant income-- so honestly we just prayed a lot for favor and were overwhelmingly blessed that we got it. Of course, if we ever live in the states he will get residency once we are married. I know it is stressful and even painfully expensive process (sometimes emotionally painful) and know many people who have been rejected...but then again, it's just not all that easy to know who is "honest" about their intention to return to Peru.