When my father owned rentals, he came to the conclusion it was more desirable to have a few higher end rentals than many low end rentals for a variety of reasons that basically boiled down to the quality of tenants.
People who are struggling to make ends meet are far more likely to leave you holding the bag and more apt to do more damage to the property. There were a few horror stories at my dad’s lower end rentals and I can still see the damage when I close my eyes. It was disgusting.