Montreal real estate: Where do co-ops fit in housing speculation?

Most of us either buy or rent our home. But there is a third option, and one that is often overlooked: cooperative housing.
In a co-op, there are no landlords and no tenants. There is no rent or mortgage payment. Ownership is collective, and the responsibility for maintaining the buildings and landscaping is, too. Monthly housing fees are calculated to cover costs, not to make a profit, which often makes this type of housing more affordable.
It may sound like a hippie fantasy (and indeed, most C