Co-ops that are involved in building apartments? They're so few they're irrelevant. It still needs the members to put in a fair amount of money - likely a lot more than the average renter can afford. And it requires "decent" members.
Try being a landlord for the "median" renter, and you'll see how many irresponsible people are out there. A lot of below median folks have zero interest in maintaining their place - even if they own it. They'd make for very poor co-op members.
