I am confused as to what the difference is between these Paris metro
cards: Carte Orange (zones 1-3) and Paris Visite (zones 1-3). I
understand that Paris Visite is meant for tourists and that Carte
Orange lasts 7 days as opposed to 3 days for Paris Visite. However,
Paris Visite must be better in something, otherwise it wouldn't cost
more! Someone please help!

thanks