Actually very similar to the states these days. I used to go back before her gangs took over in the late 90’s early 2000’s and that’s when it was dirt cheap. Now that Bukele has taken over and let the US dollar fly, many of the rates are the same as the states, if not higher. Now that’s not to say you can’t find deals, because you absolutely can, but it’s a lot harder these days as the price of nearly everything went up.
I found some beach lots last summer when we went that were going for $1-200k, and these were just empty lots of land. No building, no sewer lines, electrical hookups, nothing.
But I would check Airbnb. You could probably find some decent deals on there.