> But, after I add up home loan interest, taxes, homeowner's insurance, higher utility bills, maintenance, etc., the amount of money that I will definitely never see again adds up

So your landlord was renting your apartment to you at a loss?

The landlord may have been. Sometimes investments lose money.

But it's also probable that the loan is fixed at a lower rate than you can get now, the maintenance costs less if you put a few people on salary vs hiring them for one off repairs, and the utility bills are lower because it's a smaller space.