When the inflation is very high, and possibly will get even higher, investing in BTC will be a really good investment for Argentinians. Bitcoin will keep its value even if the local currency is destroyed/inflated. The Argentinians who have invested in Bitcoin will have something that has value, while the rest has worthless pesos.
Gold could of course do the same job, but Bitcoin is easier to keep hidden from government (you never know what governments do in times of crisis) you could use it to buy things online and use as a currency in the local community (instead of pesos). Another thing is that if you need to escape (this is if things get really bad, but you can never be too paranoid
), you could have BTC in an online wallet that could be used in the country you move to, without taking the risk of carrying lots of gold with you (and the pesos will in that situation be useless in other countries).