It's a little more; it depends greatly on what you buy too. I've found that it's more like 0,75$-1,25$ depending on what you buy, which I think is enough reason to do it. Save like 30$/month depending on what you shoot is worth it for me.
And you can shoot cine films too, which is pretty dope. Polypan F is about 25€/400ft roll, which is 80 rolls, at 30 cents a roll.
A 100ft of Tri-X is 62$ at B&H. A roll is 4,30$. Out of a 100ft roll you get about 20 36 exposure canisters, which means it comes to about a 1,20$ difference.
With Arista Premium you're saving about 80 cents a roll.