$1K/month is probably low for me though if I added up all the expenses a renter wouldn't generally have although a renter also probably wouldn't be renting a house like mine for an extended period so it's a bit hard to do apples to apples.
In any case, living in a house is very much not free even once you're paid off the mortgage--especially if you make an effort to prevent a lot of maintenance debt from accumulating.
That has to be for commercial real estate, or you've been ripped off. There is no possibility of a single family dwelling ever having plumbing problems of that scale.
But maintenance costs are in general a landlord lie. They wouldn't rent out their properties if costs where anywhere near income. As for my own anecdote, my landlord has spent at most 0,5% of what he's gotten in rent from me on maintenance over the years. A normal tenant won't break anything or induce any maintenance costs.
Last year I spent twenty grand on a new roof. What's next? Idk, but that's why my mortgage isn't half of my salary. If it was rent, these things wouldn't be my problem.
That's the trade-off.