3 ms·Slavery was profitable. Many mansions in England attest to this. It just wasn't optimal.by ectopod 5y agoSlavery was profitable. Many mansions in England attest to this. It just wasn't optimal.pfortuny 5y agoSerfdom is not exactly the same as slavery though. It has enough differences to make them incomparable from an economic point of view.ectopod 5y agoThe mansions from feudal times are mostly gone. Many enormous mansions built with the profits of slavery in the West Indies still exist.