AlexfromLA said:The law clearly states that you can only be here 90 days plus another 90 day extension on a tourist visa. If you go and try to extend your visa after that in person at migraciones, they will tell you " sorry ma'am you are only allowed to be in Argentina for 180 days, you can reapply after another 180 days has passed ".
Most people understand the implicitness of this law so they take the Uruguay route because this law isn't being enforced at the border ( it is only enforced after you do it multiple times and an immigration agent actually takes the time to look at your reentry visas closely ).
It is illegal to permanently reside in Argentina on a tourist visa.
If you have a problem with the wording of the law or how it is to be interpreted, you can simply call migraciones or go to migraciones and ask them directly.
Ask very directly and you will get a direct answer " Can I live permanently in Argentina on a tourist visa as long as I go to Uruguay for a day every three months ? ". You will get a very direct answer.
You can enter as much as you please