It’s complicated, for me personally having one or two extra properties you’re providing a service, not everyone wants to buy a house at every moment, e.g. I recently moved to another city and wanted to live in a neighborhood for a while before buying something. The more you have, the more part of the problem you become, because when someone wants to buy somewhere they now can’t because people own it for renting. Also, again personally, if the value of rent is higher than the value of the mortgage, then you’re ripping people off, because you’re essentially buying the house with their money while they can’t buy a place of their own. As an example, I want to buy a place of my own, but every place here is so expensive because people buy them to rent, because the rent is higher than the mortgage so if you have the initial money buying a house is essentially free money, however rent is so high that getting the initial money is really hard and people are stuck with paying more to own nothing.