Days Gone full price is $4199ARS ($98,80USD) though it's currently on 'sale' at a price of $2999ARS ($70,56USD). So I'd guess that yes, Sony is overpricing their games in Argentina.
Another example. God of War $3699ARS ($87,04USD), it's also on 'sale' now sitting at $2499 ($58,80USD).
I don't own a PS4 so I just looked it up online through browser.
Personally, that's the very reason I game on PC and don't buy a console. These prices are terrible for a country like Argentina, that's is also now facing/going through a financial crisis, and by the way, I don't think that's how you do 'sales'. They (Sony) also seem to claim they sell their games at U.S price ('Mismo precio que USA' says their store) some of these games go up to almost $90USD... LOL?