Actually Airbnb received a firm push back, nowadays everything lands on Booking. There are virtually no places in developed world cheaper than 100EUR/USD/GBP per night, the standard price is closer to 200. Why bother with long term rental if full month rent can be fetched within a week, or within two days if there is a concert or event nearby.
Some of the people I studied with become landlords, and during peak tourist season they can earn close €5000-€7000 / month renting to tourists. Long-term rent for equivalent apartment would be around €1500-€2000 / month.
So what happens, is as I wrote, they only rent short-term during tourism season, and then find regular renters that are willing to live 6-8 months in the apartment.
