You can search by area or barrio on MercadoLibre. Out here (Los Cardales), north of CABA, prices for a 3 bedroom house in a barrio would vary between 180-220k Dollars. Depends on the size of the ground, amenities (pool), and so on. Barrios often have common amenities as well, restaurants, tennis courts, fitness clubs and even golf courses, which will affect the price. A 50 year old house in the premiere Barrio in Los Cardales (the Country Club) with old style construction (bricks and wood, no concrete) will sell at a major premium because of this, even though it will need major renovation within 10 years or so.
Regarding rents, I recently came across this (from inmobiliaria.si):
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They’re suggesting a rentability of 5% pero year which does translate into a very low rent (USD 1000 for a 200k house). Is that what you’re refuting,
@Cordoba?