'Twas initially claimed by the medical experts that marge was better for you than butter in that the former was healthier because it prevented cholestorol build-up in your blood, and so lessened the risk of a heart attack. I bet that marge sales rocketed because of that claim.

However, since then that has been proved a false assertion.

Anyway, if you really can't do without marge/butter, and the prices are similar, buy butter. Butter tastes much better than marge, as I recall. I used to buy Wheelbarrow unsalted butter back in the days in Blighty.

Having been off marge/butter for such a long time, I have no desire to get back on to either.