[francocalvo]

As an Argentinian I might be able to answer.

Except importers, people can't buy the official dollar. Most people can't buy the 200 dollars a month that the central bank allows, with a tax of 75% over the official value. Then you have the markets dollars, the MEP and CCL, which are more expensive (~100% more than the official).

All of these types of exchange are setup to make the process painful as possible because they want to stop draining the federal reserves.

With USDT et al you can buy it much much easier, out of reach of the AFIP if done correctly, and you are safe against the high inflation (78% for 2022 so far). This crypto dollars are normally cheaper than the MEP&CCL and more expensive than the others.

I'm on my phone, sorry for the typos.